Worker forming a union (6)
I believe the answer is:
joiner
'worker' is the definition.
(joiner is a kind of worker)
'a union' is the wordplay.
I cannot quite see how this works, but
'union' could be 'join' (synonyms) and 'join' is found in the answer.
The remaining letters 'er' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'forming' is the link.
Can you help me to learn more?
(Other definitions for joiner that I've seen before include "as clubbable type?" , "Tradesman who makes house fittings and other woodworks" , "One eager to belong; woodworker" , "Person who makes finished woodwork" , "Woodworker (Snug)" .)
