Interest in the homecoming (6)
I believe the answer is:
return
I believe this clue is a double definition.
'interest' is the first definition.
(I've seen this before)
'homecoming' is the second definition.
(synonyms)
'in the' is the link.
(Other definitions for return that I've seen before include "second half of journey" , "Come back; profit" , "Profit earned on money" , "Send/come back" , "Give or come back" .)