Both sides in townhall meetings with swimming outfit (4)
I believe the answer is:
togs
'outfit' is the definition.
(I've seen this in another clue)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for togs that I've seen before include "Gear" , "garment" , "costumes [STRINE]" , "Clothes (sl.)" , "Clothes (informal)" .)