Jam extract (7)
I believe the answer is:
squeeze
This clue is a double definition.
'jam' is the first definition.
(thesaurus)
'extract' is the second definition.
(thesaurus)
(Other definitions for squeeze that I've seen before include "Steady" , "Press (a lover?)" , "Exacting demand" , "credit crunch?" , "Hug; press in upon" .)