Queen leaves pantry with cooking fat (4)
I believe the answer is:
lard
'cooking fat' is the definition.
(I've seen this before)
'queen leaves pantry' is the wordplay.
'queen' becomes 'er' (abbreviation for Elizabeth Regina).
'leaves' indicates named letters should be taken away.
'pantry' becomes 'larder' ('larder' can be a synonym of 'pantry').
'larder' with 'er' taken away is 'LARD'.
'with' is the link.
(Other definitions for lard that I've seen before include "Hard cooking fat" , "Aggrandise - embellish" , "Fat Scottish landowner appears disheartened" , "F [FAT]" , "Pork fat" .)