Edit clue, first of four condemned as underhand (9)
I believe the answer is:
deceitful
'underhand' is the definition.
(thesaurus)
'edit clue first of four condemned' is the wordplay.
'first of four' becomes 'f' (1st letter of 'four').
'condemned' indicates an anagram.
'edit'+'clue'+'f'='editcluef'
'editcluef' is an anagram of 'DECEITFUL'.
'as' acts as a link.
(Other definitions for deceitful that I've seen before include "cheating" , "Duplicitous" , "Deliberately misleading" , "unreliable" , "Dishonest" .)