ACROSS
1 Move is last of several in trick (8) DISLODGE {D{IS}{
6 At a distance from Niagara Falls, looking back (4) AFAR [T<=]
10 Trifling sum made from comic strip (7) PEANUTS [DD]
11 King first to believe in cures in medicinal plant books (7) HERBALS {HE{R}{B
12 City guides on audio (5) LEEDS (~leads)
13 Informer admitting fraud with regret about being storyteller (9) RACONTEUR {RA{CON}T}{EUR<=}
14 Pest unfit to be cool leader (8,6) COLORADO BEETLE*
18 Good soldiers, with power at that time in land, set about difficult task (5,3,6) GRASP THE NETTLE {G}{RA}{S{P} {THE N}ETTLE}
20 Smell piece of old cloth in country (9) FRAGRANCE {F{RAG}RANCE}
22 Anxious gamble, starting east instead of west (5) EAGER (-w+e)EAGER
24 Fuss, blushing about information finally embellished (7) ADORNED {ADO}{R{
25 Success whipped up mirth (7) TRIUMPH*
26 Admire pace (4) RATE [DD]
27 Rail service tours are all over the place (8) EUROSTAR*
DOWN
2 I cope without an idol (5) IMAGE {I}{M
3 Trumpeter stirring mortals, rousing (5,9) LOUIS ARMSTRONG*
4 Record supported by Republican correct? Shame (9) DISCREDIT {DISC}{R}{EDIT}
5 Raised quote about hard set of principles (5) ETHIC {CITE<=} about {H}
7 Tell of unusually absorbing time producing bean (9) FLAGEOLET {TELL+OF}* over {AGE}
8 Run English class in holiday location (6) RESORT {R}{E}{SORT}
9 Perks, in brief, fine gents exploited (6,8) FRINGE BENEFITS*
10 Comrade with great mansion (6) PALACE {PAL}{ACE}
15 Play with vessel in laboratory not allowed (4,5) LARK ABOUT {L{ARK} AB}{OUT}
16 Warder beginning to exaggerate achievement during drink (9) BEEFEATER {BE{E
17 Quest to get attention in school (6) SEARCH {S{EAR}CH}
19 Concern caused by a very loud tune (6) AFFAIR {A}{FF}{AIR}
21 Reminder uncovered around end of meeting (5) NUDGE {NUD{
23 Letter from team magistrate turned over (5) GAMMA [T<=]
GRID