Men facing it become noble (11)
I believe the answer is:
magnificent
'noble' is the definition.
(thesaurus)
'men facing it become' is the wordplay.
'become' indicates an anagram.
'men'+'facing'+'it'='menfacingit'
'menfacingit' is an anagram of 'MAGNIFICENT'.
(Other definitions for magnificent that I've seen before include "Highly impressive" , "like Lorenzo de' Medici" , "Very beautiful, impressive" , "Wonderful" , "Splendid" .)