Revolutionary troops beginning to test remark (7)
I believe the answer is:
comment
'remark' is the definition.
(synonyms)
'revolutionary troops beginning to test' is the wordplay.
I cannot really see how this works, but
'troops' could be 'men' (I've seen this in another clue) and 'men' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for comment that I've seen before include "How suitable for Le Monde" , "Explanatory note" , "Nancy's version of how" , "Remark, observe" , "Leader writer's forte" .)