Figure to draw a plant (5)
I believe the answer is:
vetch
'a plant' is the definition.
(vetch is a kind of plant)
'figure to draw' is the wordplay.
'figure' becomes 'v' (I can't justify this - if you can you should give a lot more credence to this answer).
'to draw' becomes 'etch' (I've seen this before).
'v'+'etch'='VETCH'
Can you help me to learn more?
(Other definitions for vetch that I've seen before include "Wild climbing plant" , "Weed" , "Leguminous plant" , "Climbing plant of the pea family, cultivated as fodder" , "Tare" .)