Solution to 14A has been deliberately left unsolved and is to be answered only by a non-regular / novice commenter, with proper annotation. Those who have answered earlier in the week, please give others a chance.
Open for anyone to solve, if not solved by 1 PM.
ACROSS
7 Company backing very large conglomerate at last entering town (7) SOCIETY {OS<=}{C{c...tE}ITY}
8 From the beginning organisations regularly perhaps helping all needy and abandoned (6) ORPHAN Acrostic
9 Minister carrying new weapon (6) CANNON {CAN{N}ON}
10 Excited bakers enthralled by North American state (8) NEBRASKA {N{BAKERS*}A}
11 Threatened grenade explosion behind border (10) ENDANGERED {GRENADE}*<=>{END}
13 Star hugging model in shock (4) STUN {S{T}UN}
14 Jack was involved in chats (4) ?A?S (Addendum JAWS {J}{WAS*} - See comments)
16 Flier back from Afghani border (5) ROBIN [T]
21 Creature unfortunately returning in front of guy with the German (10) SALAMANDER {ALAS<=}{MAN}{DER}
23 Note by politician said to be profane (8) TEMPORAL {TE}{MP}{ORAL}
26 Wild bears chasing unknown animals (6) ZEBRAS {BEARS}*<=>{Z}
DOWN
1 Check lads spreading rumours (8) SCANDALS {SCAN}{LADS*}
2 Youth edited agreement removing mark (8) TEENAGER AGREEmENT*
3 Tin coated with finally ruby colour (4) CYAN {C{rubY}AN} Is coated okay as a containment indicator?
4 In favour of offer in bar (6) FORBID {FOR}{BID}
5 Sprinkles bouquets (6) SPRAYS [DD}
6 Ruined punk? Right, collapsed inside club (8) BANKRUPT {PUNK+R}* in {BAT}
7 Cramps while cycling in country (5) SPAIN (+s)PAIN(-s)
15 Wins? That is victory shrouded by pains (8) ACHIEVES {ACH{IE}{V}ES}
17 Submit main note perhaps (8) NOMINATE*
18 Seizes children's game reportedly (8) CONQUERS (~conkers)
20 Trade old wine (6) EXPORT {EX}{PORT}
21 Sisters abandoned one sadly in trouble (6) STRESS SiSTERS*
22 Cancel dates online (5) ERASE {ERAS}{E}
24 Basically looped artistic cross-stitch embroidery for filigree (4) LACE Acrostic Semi&lit
Reference List
Very large = OS, New = N, Model = T, Jack = J, Old = O, The in German = DER, Note = TE, Unknown = Z, Church = CE, Mark = M, Right = R, Victory = V, Online = E