Gendarme in trouble, wandering aimlessly (10)
I believe the answer is:
meandering
'wandering aimlessly' is the definition.
'meandering' can be an answer for 'wandering' (I've seen this before). I am unsure of the 'aimlessly' bit.
'gendarme in trouble' is the wordplay.
'trouble' indicates anagramming the letters.
'gendarme'+'in'='gendarmein'
'gendarmein' with letters rearranged gives 'MEANDERING'.
Can you help me to learn more?
(Other definitions for meandering that I've seen before include "Digressive" , "Winding, rambling" , "Tortuous" , "Serpentine?" , "full of twists and turns" .)