Crossword Genius

Fellow with a beagle, surprisingly well-behaved? (10)

Ross

I believe the answer is:

manageable

I'm a little stuck... Click here to teach me more about this clue!

'well-behaved?' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

'fellow with a beagle surprisingly' is the wordplay.
'fellow with' becomes 'man' (I've seen this in other clues).
'surprisingly' indicates an anagram (a surprising ordering of the letters).
'beagle' anagrammed gives 'geable'.
'man'+'a'+'geable'='MANAGEABLE'

Can you help me to learn more?

(Other definitions for manageable that I've seen before include "Open to being controlled" , "Able to be controlled" .)

I've seen this clue in The Guardian.
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