Comply with those gathering for the chase (4)
I believe the answer is:
meet
This clue is a double definition.
'comply with' is the first definition.
(as in complying with or meeting with a requirement)
'those gathering for the chase' is the second definition.
(people gathering to go hunting)
(Other definitions for meet that I've seen before include "Join" , "Fitting to come together" , "sporting occasion" , "counter" , "Right and fitting" .)