For example, good liquor — not all that is used in the kitchen (3,5)

'kitchen' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'for example good liquor not all that is used in' is the wordplay.
'for example' becomes 'e.g.' (short for 'exempli gratia', 'for example' in Latin).
'good liquor' becomes 'gk' (I can't justify this - if you can you should give a lot more credence to this answer).
'not all' means to remove the last letter (not quite all of it).
'that' becomes 'who' (the person that..., the person who...).
'used in' indicates putting letters inside.
'who' with its last letter taken off is 'wh'.
'wh'+'is'='whis'
'gk' going around 'whis' is 'gwhisk'.
'eg'+'gwhisk'='EGG-WHISK'

'the' acts as a link.

Can you help me to learn more?