Wild fowl rears laid eggs (7)
I believe the answer is:
gametes
'eggs' is the definition.
The answer and definition can be both body parts as well as being plural nouns.
Maybe you can see a link between them that I can't see?
'wild fowl rears laid' is the wordplay.
'wild fowl' becomes 'game' (game fowl is a kind of fowl. I am not sure about the 'wild' bit.).
'rears' says the letters should be written in reverse (I've seen 'rearing' mean this (as in a horse rearing up)).
'laid' becomes 'set' (synonyms).
'set' in reverse letter order is 'tes'.
'game'+'tes'='GAMETES'
Can you help me to learn more?
(Another definition for gametes that I've seen is " Cells".)