Fish lake a female would presumably own (8)
I believe the answer is:
lingerie
'a female would presumably own' is the definition.
I can't judge whether this defines the answer.
'fish lake' is the wordplay.
'fish' becomes 'ling' (ling is a kind of fish).
'lake' becomes 'erie' (Lake Erie is one of the Canadian/US 'Great Lakes').
'ling'+'erie'='LINGERIE'
Can you help me to learn more?
(Other definitions for lingerie that I've seen before include "One from W Atlantic island group" , "Scanties" , "Fancy underwear for women" , "Women's flimsy underwear" , "Ladies' underwear" .)