Time to request stuff for working party (4,5)
I believe the answer is:
task force
'working party' is the definition.
(I've seen this before)
'time to request stuff' is the wordplay.
'time' becomes 't'.
'to request' becomes 'ask' ('ask' can be a synonym of 'request').
'stuff' becomes 'force'.
't'+'ask'+'force'='TASK-FORCE'
'for' is the link.
(Other definitions for task force that I've seen before include "work party" , "subcommittee" , "working party" , "Squad for undertaking" , "Temporary unit to accomplish an objective" .)