It's worn in two places, but very little (6)
I believe the answer is:
bikini
'very little' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'it's worn in two places' is the wordplay.
I cannot quite understand how this works, but
'in' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'but' acts as a link.
Can you help me to learn more?
(Other definitions for bikini that I've seen before include "Atoll and swimming costume" , "A small two -piece bathing costume" , "Two piece swimsuit" , "Dress" , "offering scanty cover" .)