Invasive fish species (4)
I believe the answer is:
carp
(Other definitions for carp that I've seen before include "Moan; fish" , "praise? The opposite" , "Cavil - fish" , "Fish; find fault continually" , "Complain in manner of goldfish" .)
I believe the answer is:
carp
(Other definitions for carp that I've seen before include "Moan; fish" , "praise? The opposite" , "Cavil - fish" , "Fish; find fault continually" , "Complain in manner of goldfish" .)