Handsome judge -- and intelligent (12)
I believe the answer is:
considerable
'handsome' is the definition.
(thesaurus)
'judge and intelligent' is the wordplay.
'judge' becomes 'consider' (I've seen this before).
'and' means one lot of letters go next to another.
'intelligent' becomes 'able'.
'consider'+'able'='CONSIDERABLE'
(Other definitions for considerable that I've seen before include "worthy of attention" , "A lot (of) - worthy of respect" , "Fairly large or numerous" , "Tidy" , "Relatively large" .)