Curry was one of fish and rice originally (6)
I believe the answer is:
skater
'curry was one' is the definition.
(John Curry was a figure skater)
'fish and rice originally' is the wordplay.
'fish' becomes 'skate' (skate is a kind of fish).
'and' is a charade indicator (letters next to each other).
'originally' says to take the initial letters.
The first letter of 'rice' is 'r'.
'skate'+'r'='SKATER'
'of' acts as a link.
(Other definitions for skater that I've seen before include "One moves on ice" , "One using blades (or rollers?)" , "Streak (anag)" , "Winter sportsman" , "Could one roll up" .)