Return is about a distant trip (6)
I believe the answer is:
safari
'trip' is the definition.
(I have seen 'tropical trip' mean 'safari' so perhaps 'trip' could also mean 'safari')
'return is about a distant' is the wordplay.
'return' shows that the letters should be reversed in order.
'about' indicates putting letters inside.
'a distant' becomes 'afar' (I've seen this before).
'is' in reverse letter order is 'si'.
'si' placed around 'afar' is 'SAFARI'.
(Other definitions for safari that I've seen before include "Hunting expedition (in Africa)" , "Overland journey to look for wild animals" , "Expedition to observe animals" , "Hunting trip" , "[PARK] trip" .)