Across:
8 Angry (= anagram indicator) mob (mob = -MBO-) following (= anagram indicator) graduate (BA-) from Oxford (-O) (BAMBOO) for feeding the pandas (BAMBOO),
9 Director (director = CREDITOR) working (= anagram indicator) with at least one of them in accounts (CREDITOR),
10 Hard to watch (UGLY) amusingly with no mains (‘amusingly’ with no ‘mains’ = ugly = UGLY),
11 Commercial (MERCANTILE) car (MERC-) worker (-ANT-) loses the head (b) with ill temper (‘bile’ without ‘b’= -ILE) (MERCANTILE),
12 Signed (signed = DESIGN) off (= anagram indicator) the work of the architect (DESIGN),
14 Famous (HISTORIC) wild (= anagram indicator) ostrich (ostrich = HISTOR-C) roaming around island (-I-) (HISTORIC),
15 Pays too much (OVERCOMPENSATES) when all is said and done (when it’s OVER-) for firm (-CO-) linked to partners (mates = -M-ATES) accommodating writers (-PENS-) (OVERCOMPENSATES),
18 Those controlling the apps (PROGRAMS) in buggies (prams = P-RAMS) around mid-afternoon (mid ‘afteRnoon’ = -R-), love (-O-) golf (-G-) (PROGRAMS),
20 Doing the dealing (BUYING), solicited from Building Society (‘solicited’ from ‘building society’ = buingy = BUYING),
22 14 across (‘historic’ = HISTORIC-) is a (-A-) port (port/left = -L) (HISTORICAL) from a former era (HISTORICAL),
24 Poses (SITS) with strategists dismissing targets (‘strategists’ dismissing ‘targets’ = ists = SITS),
25 A relative of Daisy’s (CAMOMILE), with a (-A-) Californian mother (-MOM-), gets 50% of (half of) lock-up premises (half of ‘jail’ = -IL-) in Clare (C-E) (CAMOMILE),
26 Anoint (anoint = NATION) sick (= anagram indicator) of the republic, for instance (NATION).
Down:
1 Get twisted (TANGLE) on cocktails at The Centre (‘cockTails’ at the centre = T-) with cast (cast/fish = -ANGLE) (TANGLE),
2 Don’t resist (OBEY) Nan from Bayonne (‘Nan’ from ‘Bayonne’ = byoe = OBEY),
3 College (C-) at the end of term (end of ‘terM’ = -M-) in Arabian country (Oman = -OM-AN-) has party (-DO) (COMMANDO) for one going on The Missions (COMMANDO),
4 Ceramist removes item (‘ceramist’ removes ‘item’ = cras = SCAR) with blemish (SCAR),
5 Those in half of 7 down (those in half of ‘coal mine’ = METALS) missed deadline (late = -ETAL-) review (= reversal indicator) to go into manuscript (M-S) (METALS),
6 Holds onto every word (DICTIONARY) from the definitive volume (DICTIONARY),
7 No malice (no malice = COAL MINE) working (= anagram indicator) in the pit (COAL MINE)
13 System put in place to water down (IRRIGATION) European capital (capital of Latvia = -RIGA-) overwhelmed violently (= anagram indicator) in riot (in riot = IR-TION) (IRRIGATION),
14 Convictions (HOPES) for putting erosive lead (‘Erosive’ lead = -E-) in skips (hops = HOP-S) (HOPES),
16 Straight up (VERTICAL) – opposed (versus = V-) to rambling (= anagram indicator) article (article = -ERTICAL) (VERTICAL),
17 Picking over the bones of something (NIBBLING) can (tin = NIB-) upset (= reversal indicator) lawyer (-BL-) in (-IN-) Government (-G) (NIBBLING),
19 American (A-) loud music (forte = -F-) gets to Rob (rob = -RAID) (AFRAID) – he’s shaking in his boots (AFRAID),
21 It’s not (NOT-) on (-ON) after (= position indicator) institute (-I-) (NOTION) gets wrong impression perhaps (NOTION),
23 Meditate over (CHEW over) fragment of Nietzsche wisdom (fragment of ‘ NietzsCHE Wisdom’ = CHEW),
24 For the builders (SITE), gas fitter lacks graft (‘gas fitter’ lacks ‘graft’= site = SITE).