Wait, lifting half of leaf suitable for eating (6)
I believe the answer is:
edible
'suitable for eating' is the definition.
(okay to eat)
'wait lifting half of leaf' is the wordplay.
'wait' becomes 'bide' (I've seen this before).
'lifting' says the letters should be written backwards.
'half of' means to take half the letters.
'bide' written backwards gives 'edib'.
'leaf' halved is 'le'.
'edib'+'le'='EDIBLE'
(Other definitions for edible that I've seen before include "Fit to be consumed" , "Fit for consumption" , "Digestible" , "Fit for eating" , "Like some mushrooms" .)