Dry bachelor joins stag looking for mates (4)
I believe the answer is:
brut
'dry' is the definition.
(type of wine)
'bachelor joins stag looking for mates' is the wordplay.
I cannot really understand how this works, but
'bachelor' could be 'b' (abbreviation e.g. BA=Bachelor of Arts) and 'b' is located in the answer.
The remaining letters 'rut' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for brut that I've seen before include "Of champagne, not sweet" , "(Of sparkling wine) extremely dry" , "Unsweetened; very dry" , "Dry (of champagne)" , "one type of champagne" .)