Occasional spell for women in singular golf game in leisure facility (8,4)
I believe the answer is:
swimming pool
'leisure facility' is the definition.
'occasional spell for women in singular golf game' is the wordplay.
'occasional spell for women' becomes 'wimmin' (spelling of 'women' used by some feminists).
'in' is an insertion indicator.
'singular' becomes 's' (abbreviation sometimes used in dictionaries).
'golf' becomes 'g' (phonetic alphabet: alpha, bravo, charlie etc.).
'game' becomes 'pool' (pool is a kind of game).
's'+'g'='sg'
'wimmin' placed into 'sg' is 'swimming'.
'swimming'+'pool'='SWIMMING-POOL'
'in' is the link.
(Other definitions for swimming pool that I've seen before include "Lido" , "Place for public bathing" .)