Call her in for something to eat (6)
I believe the answer is:
cherry
'something to eat' is the definition.
(cherry is a kind of food)
'call her in' is the wordplay.
'call' becomes 'cry' ('cry' can be a synonym of 'call').
'in' means one lot of letters goes inside another.
'cry' placed around 'her' is 'CHERRY'.
'for' acts as a link.
(Other definitions for cherry that I've seen before include "one likely to be picked?" , "Stone fruit - shade of red" , "Virginity (slang)" , "Small red stone-fruit from tree" , "The colour of a red fruit" .)