Solution to 28A 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.
ACROSS
1 Repeatedly law is broken in affirmative votes (6) ALWAYS {A{LAW*}YS}
5 Rigid sailor’s initial opposition to stolen goods reportedly (8) ABSOLUTE {AB'S}{Op...n}{LUTE(~loot)}
9 Intolerably sweatier, so to say (2,2,4) AS IT WERE*
10 Treat with love — stop terror, ignore fundamentalists at first (6) ENDEAR {END}{fEAR}
11 Annulment of first rate soldiers’ protection rejected (10) REVOCATION {NO 1}{TA}{COVER}<=
13 One country’s code (5) INDIA [DD]
14 Periodical goes online with an attractive feature (6) MAGNET {MAG}{NET}
17 He employs lawyer to make up a story on opponents essentially within the boundaries of court (6) CLIENT {C{LIE}{o..oNe..s}T}
19 Clumsy workout at present (5) AWARD AwkWARD
22 Legal action please (4) SUIT [DD]
24 Current actor only possibly gets hero-worship (10) ICONOLATRY {I}{ACTOR+ONLY}*
26 What a hen will do? Drop a bomb? (3,2,3) LAY AN EGG [DD]
27 Bonds be taken out — they bridge the gap (8) DENTURES DEbeNTURES
28 Soldiers leave sum and substance (6) E?T?T? (Addendum - ENTITY ENTIreTY - See comments)
DOWN
2 Take notice fifty = X (6) LISTEN {L IS TEN}
3 Permit gold to speculate without base (9) AUTHORISE {AU}{THeORISE}
4 He serves primarily snacks, drinks with water at sea (7) STEWARD {Sn...s+Dr...s+WATER}*
5 Injured chimaera left hospital for New World (7) AMERICA ChIMAERA*
6 It is part of humans to hide master numbers (7) STERNUM [T]
7 Duck to accept first love for daughter in retreat (5) LODGE (-d+l)LODGE
8 Shoots model for bishop’s blocks of money (8) TRANCHES (-b+t)RANCHES
15 Backtrack and check on idiot’s annoying expression (9) GODDAMNIT {DOG<=}{DAM}{NIT}
16 A gelusil treatment or bad treatment? (3-5) ILL-USAGE*
18 It may start a train of actions or spit fire (7) TRIGGER [DD]
21 It is a horrifying situation when box contains central part of torso (6) FRIGHT {F{R}IGHT} R/Part of torso? (Addendum - {F{toRso}IGHT} - See comments)
23 Siemens comes in with perfect exactness? Cheers! (5) TOAST {S} in {TO A T}
Reference List
Sailor = AB, Soldier = TA(Territorial Army), Work = WK, Current = I, No good = NG, Soldiers = RE(Royal Engineers), Fifty = L, X= TEN, Base = E, Hospital = H, Daughter = D, Model = T, Bishop = B, Adult = A, Large = L, Siemens = S