Ramble around (4)
I believe the answer is:
rove
'ramble around' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for rove that I've seen before include "Knock about" , "Don't stay in one place" , "Roam about aimlessly" , "Ramble, roam, wander" , "Move aimlessly about" .)