Pilot admitting pressure after operation for limp (6)
I believe the answer is:
floppy
'limp' is the definition.
(thesaurus)
'pilot admitting pressure after operation' is the wordplay.
'pilot' becomes 'fly' ('fly' can be a synonym of 'pilot').
'admitting' indicates putting letters inside.
'pressure' becomes 'p' (abbreviation).
'after' means one lot of letters go next to another.
'operation' becomes 'op'.
'p' after 'op' is 'opp'.
'fly' enclosing 'opp' is 'FLOPPY'.
'for' is the link.
(Other definitions for floppy that I've seen before include "Bendy" , "Opposed to firm" , "Kind of disk" , "Type of disk" , "Tending to hang loosely" .)