Opposed to taking over sushi (6)
I believe the answer is:
versus
'opposed to' is the definition.
(I've seen this in another clue)
'over sushi' is the wordplay.
'VERSUS' is hidden in amongst the letters.
But, I am uncertain how this is indicated.
'taking' acts as a link.
Can you help me to learn more?
(Other definitions for versus that I've seen before include "taking part in team sports" , "playing" , "In opposition to" , "Opposed to" , "v. (sport)" .)