Trees with oval leaves (4)
I believe the answer is:
elms
'trees with oval leaves' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for elms that I've seen before include "Trees (of late, prone to disease)" , "may have many leaves" , "Mel's strange trees" , "Trees sound like Cockney steering devices" , "Deciduous trees with rough serrated leaves" .)