Approve and circulate (4)
I believe the answer is:
pass
This clue is a double definition.
'approve' is the first definition.
(I've seen this before)
'circulate' is the second definition.
(thesaurus)
'and' acts as a link.
(Other definitions for pass that I've seen before include "Proceed" , "Permit to enter or leave" , "pointless bid" , "complimentary ticket" , "Cross-mountain route; permit" .)