Gad (9)
I believe the answer is:
gallivant
'gad' is the definition.
(I know that gad can be written as gallivant)
This is the entire clue.
(Other definitions for gallivant that I've seen before include "Go in search of fun" , "Go out seeking amusement" , "go in search of pleasure" , "Gad about, seeking pleasure" , "Flit about" .)