Garda officer arrests leaders of trade union from Dublin workshop (6)
I believe the answer is:
studio
'workshop' is the definition.
(I've seen this in another clue)
'garda officer arrests leaders of trade union from dublin' is the wordplay.
I cannot really see how this works, but
'of' could be 'o' and 'o' is present in the answer.
'union' could be 'tu' (abbreviation for trade union) and 'tu' is present in the answer.
The remaining letters 'sdi' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for studio that I've seen before include "Place for the practice of an art" , "Elstree area" , "Workplace for production of film, say" , "Workshop for 27 dn" , "Centre for movie-making" .)