Mother with 50p, say, brought back root vegetable (6)
I believe the answer is:
manioc
'root vegetable' is the definition.
'manioc' can be an answer for 'root' (I've seen this before). I'm not certain of the 'vegetable' bit.
'mother with 50p say brought back' is the wordplay.
'mother' becomes 'ma' (Ma is another word for mother or mum).
'with' says to put letters next to each other.
'50p say' becomes 'coin' (fifty pence is a type of coin).
'brought back' shows that the letters should be reversed in order.
'coin' back-to-front is 'nioc'.
'ma'+'nioc'='MANIOC'
Can you help me to learn more?
(Other definitions for manioc that I've seen before include "root" , "source of starch" , "Cassava" , "tropical plant" .)