Noble that exhibits dial on and off? (9)
I believe the answer is:
admirable
'noble' is the definition.
(thesaurus)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for admirable that I've seen before include "Excellent" , "Praiseworthy" , "Outstanding" , "Worthy of being held in high opinion" , "Commendable" .)