Climbs around fish (6)
I believe the answer is:
scales
This clue might be a double definition.
'climbs' is the first definition.
(scaling is a kind of climbing)
'fish' is the second definition.
Although both the answer and definition are verbs, they are not in the same form of the verb. However, I know that 'fish' relates to this answer.
'around' is the link.
Can you help me to learn more?
(Other definitions for scales that I've seen before include "Weighing devices, sign of Libra" , "Flakes of fish skin" , "a number of small plates" , "Sign of the Zodiac - actor" , "is a climber" .)