Prunes have to manage (3)
I believe the answer is:
run
'manage' is the definition.
(both can mean to organise)
'prunes have' is the wordplay.
'have' says the answer is hidden in the clue.
'RUN' is hidden in the letters of 'prunes'.
'to' is the link.
(Other definitions for run that I've seen before include "Enter a race" , "Unit of score in cricket" , "Move fast or manage" , "faster pace needed" , "Uninterrupted sequence" .)