Find old Conservative delayed outside (6)
I believe the answer is:
locate
'find' is the definition.
(I know this)
'old conservative delayed outside' is the wordplay.
'old' becomes 'o' (abbreviation).
'conservative' becomes 'C' (UK political abbreviation).
'delayed' becomes 'late' (I've seen this before).
'outside' is an insertion indicator.
'o'+'c'='oc'
'oc' going inside 'late' is 'LOCATE'.
(Other definitions for locate that I've seen before include "Find by searching" , "Find - position" , "Fix position of" , "Discover the place where something is" , "Pinpoint in Alecto" .)