It's drunk in noggins (3)
I believe the answer is:
gin
'it's drunk' is the definition.
I can't tell whether this definition defines the answer.
'in noggins' is the wordplay.
'in' indicates the answer is hidden within the clue.
'GIN' is hidden within 'noggins'.
Can you help me to learn more?
(Other definitions for gin that I've seen before include "Spirit, aka 'Mother's ruin'" , "Juniper-flavoured drink" , "Trap for snaring small mammals" , "Colourless spirit flavoured with juniper berries - mother's ruin" , "Strong drink - trap" .)