Turned over furrow to pinch root vegetable (6)
I believe the answer is:
turnip
'root vegetable' is the definition.
(turnip is a kind of root vegetable)
'turned over furrow to pinch' is the wordplay.
'turned over' shows that the letters should be reversed in order.
'furrow' becomes 'rut' (rut is a kind of furrow).
'to pinch' becomes 'nip' (synonyms).
'rut' in reverse letter order is 'tur'.
'tur'+'nip'='TURNIP'
(Other definitions for turnip that I've seen before include "Plant with round white root used as vegetable" , "Rip nut up for a vegetable" , "Globular food plant" , "what you eat?" , "Watch" .)