Analyze verse (4)
I believe the answer is:
scan
'analyze verse' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for scan that I've seen before include "Survey - fit in metrically" , "Hercule ---, detective" , "Look over (in order to copy?)" , "convert metres into feet?" , "Look briefly through" .)