Be a gadabout (4)
I believe the answer is:
roam
'be a gadabout' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for roam that I've seen before include "wander around" , "go on walkabout" , "Walk without a specific destination" , "Stray" , "Ramble without purpose" .)