Drink in every gesture showing approval (6)
I believe the answer is:
pernod
'drink' is the definition.
(Pernod is an example)
'every gesture showing approval' is the wordplay.
I cannot quite understand how this works, but
'every' could be 'per' ('per' means 'for each' or 'for every') and 'per' is found within the answer.
'gesture' could be 'nod' (nodding is a kind of gesturing) and 'nod' is found in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'in' acts as a link.
Can you help me to learn more?
(Other definitions for pernod that I've seen before include "Brand of pastis" , "A liqueur flavoured with anise" , "Aperitif flavoured with aniseed" , "Aniseed-flavoured aperitif" , "Ponder on anis drink" .)