Complain about revolutionary soldier entering Scottish island (7)
I believe the answer is:
arraign
'complain about' is the definition.
(I've seen this before)
'revolutionary soldier entering scottish island' is the wordplay.
'revolutionary' says the letters should be written backwards.
'soldier' becomes 'gi' (government issue or general issue).
'entering' is an insertion indicator.
'scottish island' becomes 'arran' (I've seen this before).
'gi' reversed gives 'ig'.
'ig' placed within 'arran' is 'ARRAIGN'.
(Other definitions for arraign that I've seen before include "Accuse, put on trial" , "Accuse as in court" , "Summons" , "Call to account" , "Act against" .)