He knows many women like tinned eggs (8)
I believe the answer is:
casanova
'he knows many women like tinned eggs' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'he knows many women like tinned eggs' is the wordplay.
I cannot quite understand how this works, but
'he' could be 'asa' and 'asa' is located in the answer.
'many' could be 'c' (C is the Roman numeral for 100) and 'c' is found in the answer.
'eggs' could be 'ova' (term for egg cells) and 'ova' is found in the answer.
A single letter 'n' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for casanova that I've seen before include "Legendary Italian womaniser" , "18th century Italian lover" , "Amorous person" , "Amorous Venetian" , "Famous Italian" .)