Singer is a fool about body odour? Just the opposite (5)
I believe the answer is:
basso
'singer' is the definition.
(basso is a kind of singer)
'fool about body odour? just the opposite' is the wordplay.
I cannot really understand how this works, but
'fool' could be 'ass' (both can mean a stupid person) and 'ass' is located in the answer.
'odour?' could be 'bo' (B.O. is an example) and 'bo' is located in the leftover letters.
No letters remain.
This explanation may well be incorrect...
'is a' acts as a link.
Can you help me to learn more?
(Other definitions for basso that I've seen before include "low voice" , "one's deep in sound" , "Lowest male singing voice (sometimes 'profundo')" , "Singer" .)