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' indicates the doubling of some letters.
'pages' becomes 'p'.
'turned' indicates anagramming the letters.
'p' doubled is 'pp'.
'over' with letters rearranged 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" .)