Small orange carp (8)
I believe the answer is:
goldfish
'small orange carp' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for goldfish that I've seen before include "Fairground prize" , "he may go round in a tank" , "Popular piscine pet" , "Orange-red freshwater fish" , "Bowl or pond dweller" .)