Informer holding dance party wasn't complete tourist (9)
I believe the answer is:
traveller
'tourist' is the definition.
(I've seen this before)
'informer holding dance party wasn't complete' is the wordplay.
I cannot quite understand how this works, but
'party' could be 'rave' (type of dance party) and 'rave' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for traveller that I've seen before include "Nomadic person" , "fare?" , "Voyager" , "'I met a . . . . . . . . . from an antique land' (P.B.Shelley)" , "asked if anybody was there" .)