A couple of pages turned over, OK? (7)
I believe the answer is:
approve
'ok?' is the definition.
(to OK something is to approve it)
'a couple of pages turned over' is the wordplay.
'couple of pages' becomes 'PP' (the abbreviation for 'page' repeated).
'turned' indicates anagramming the letters.
'over' anagrammed gives 'rove'.
'a'+'pp'+'rove'='APPROVE'
(Other definitions for approve that I've seen before include "Commend; ratify" , "Officially accept as satisfactory" , "Think well of; sanction" , "Give the nod to, sanction" , "Sanction, ratify" .)