Little committee agreement (7)
I believe the answer is:
compact
'little' is the definition.
(I've seen this before)
'committee agreement' is the wordplay.
'committee' becomes 'com' (abbreviation for committee).
'agreement' becomes 'pact' (a pact is an agreement or deal).
'com'+'pact'='COMPACT'
(Other definitions for compact that I've seen before include "An official agreement" , "Neatly packed" , "Small case for face-powder" , "it could be in the bag" , "Compress; agreement" .)