Mentors need new support (11)
I believe the answer is:
endorsement
'support' is the definition.
(I've seen this before)
'mentors need new' is the wordplay.
'new' indicates an anagram.
'mentors'+'need'='mentorsneed'
'mentorsneed' anagrammed gives 'ENDORSEMENT'.
(Other definitions for endorsement that I've seen before include "Green light" , "Support and approval" , "passing through red light may carry it" , "drivers would prefer not to have?" , "Sanction, backing" .)