Climbed (6)
'climbed' is the definition.
(scaling is a kind of climbing)
This is the entire clue.
(Other definitions for scaled that I've seen before include "Climbed or removed fish skin" , "Climbed; flaked off" , "(Of a body) covered with thin horny plates" , "Climbed or removed fish-flakes" , "Cleaned fish" .)
'climbed' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ascended that I've seen before include "R [ROSE]" , "Climbed, went up" .)