Chewed leaf (5)
I believe the answer is:
betel
'chewed leaf' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for betel that I've seen before include "leaves to chew" , "Asian tree, whose nuts and leaves are chewed as a narcotic" , "Palm with leaf and nuts chewed" , "Asian feather palm" , "Palm with nuts for chewing" .)