Plant in different vein (4)
I believe the answer is:
vine
'plant in' is the definition.
'vine' can be an answer for 'plant' (I've seen this before). I'm unsure of the 'in' bit.
'different vein' is the wordplay.
'different' indicates anagramming the letters.
'vein' is an anagram of 'VINE'.
Can you help me to learn more?
(Other definitions for vine that I've seen before include "Climber - creeper" , "Plant bearing grapes" , "Woody-stemmed climber" , "Climbing plant that needs support" , "Climbing fruiting plant" .)