Wherein workers are not keen on cold refreshment? (7)
I believe the answer is:
offices
'wherein workers are not keen' is the definition.
I can't judge whether this defines the answer.
'on cold refreshment?' is the wordplay.
'on' means one lot of letters goes inside another (as in clothing 'on' a person).
'cold' becomes 'C' (eg on taps).
'refreshment?' becomes 'offies' (I can't explain this - if you can you should believe this answer much more).
'c' put within 'offies' is 'OFFICES'.
Can you help me to learn more?
(Other definitions for offices that I've seen before include "Government departments - where they sell tickets" , "business premises" , "posts" , "Places of work" , "Bureaux" .)