Travel about collecting papers (4)
I believe the answer is:
ride
'travel' is the definition.
(eg to ride a bus)
'about collecting papers' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'collecting' is an insertion indicator.
'papers' becomes 'ID' (identification papers).
're' placed around 'id' is 'RIDE'.
(Other definitions for ride that I've seen before include "Sally" , "Go by bicycle" , "Be transported" , "What suckers are taken for" , "Travel by horse, bus, etc" .)