Records a variety of trees round the north (6)
I believe the answer is:
enters
'records' is the definition.
(enter can mean to enter into a record)
'a variety of trees round the north' is the wordplay.
'a variety of' is an anagram indicator.
'round' indicates putting letters inside.
'the north' becomes 'N' (abbreviation).
'trees' with letters rearranged gives 'eters'.
'eters' going around 'n' is 'ENTERS'.
(Other definitions for enters that I've seen before include "Inserts" , "Goes inside" , "Registers for a competition, say" , "Comes in" , "Records, in a diary say" .)