Bank invested in soccer tournament to make killing (5,2)
I believe the answer is:
clean up
'make killing' is the definition.
'clean up' can be an answer for 'make' (thesaurus). I'm not certain of the 'killing' bit.
'bank invested in soccer tournament' is the wordplay.
I cannot quite see how this works, but
'bank' could be 'lean' (bank can mean to lean or tilt) and 'lean' is present in the answer.
'tournament' could be 'cup' (eg the World Cup) and 'cup' is found in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'to' is the link.
Can you help me to learn more?
(Other definitions for clean up that I've seen before include "Make a lot of money" , "emulate Bowdler" , "Win the lot; remove dirt" , "free of filth" , "Make a substantial profit" .)