Reformed Serb covered in praise for comment (11)
I believe the answer is:
observation
'for comment' is the definition.
(observation is a kind of comment)
'reformed serb covered in praise' is the wordplay.
'reformed' is an anagram indicator.
'covered in' is an insertion indicator.
'praise' becomes 'ovation' (as in a standing ovation).
'serb' with letters rearranged gives 'bser'.
'bser' going inside 'ovation' is 'OBSERVATION'.
(Other definitions for observation that I've seen before include "Surveillance; comment" , "Comment on something one has heard or seen" , "Study" , "Remark; sighting to determine position" .)