Squash my face (7)
I believe the answer is:
cordial
'squash' is the definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'my face' is the wordplay.
'my' becomes 'cor' (both are expressions of surprise).
'face' becomes 'dial' (face of a clock).
'cor'+'dial'='CORDIAL'
Can you help me to learn more?
(Other definitions for cordial that I've seen before include "Friendly; fruit drink" , "stimulating drink" , "drink with a fruity flavour" , "Pleasant - soft drink" , "Hearty - drink" .)