Moulds enjoyable girlfriends? (5)
I believe the answer is:
fungi
'moulds' is the definition.
The answer and definition can be both plants as well as being plural nouns.
Perhaps you can see a link between them that I don't see?
'enjoyable girlfriends?' is the wordplay.
'enjoyable' becomes 'fun' (fun means enjoyable or pleasing).
'girlfriends?' becomes 'gi' (I am not sure about this - if you are sure you should believe this answer much more).
'fun'+'gi'='FUNGI'
Can you help me to learn more?
(Other definitions for fungi that I've seen before include "Eg, toadstools" , "Yeast, etc" , "Spore producers" , "Spore-producing organisms" , "Mushrooms, toadstools, moulds etc" .)