Charge about right for fish (5)
I believe the answer is:
troll
This clue could be a double definition.
'charge about right' is the first definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'fish' is the second definition.
(trolling is a type of fishing)
'for' acts as a link.
Can you help me to learn more?
(Other definitions for troll that I've seen before include "Unsocial social media user" , "Ugly dwarf or giant" , "Grotesque dwarf" , "Fish; goblin" , "Ugly creature of Norse myth" .)