Mentors need to get reorganised support (11)
I believe the answer is:
endorsement
'support' is the definition.
(I know that endorsement is a type of support)
'mentors need to get reorganised' is the wordplay.
'to get reorganised' indicates anagramming the letters.
'mentors'+'need'='mentorsneed'
'mentorsneed' is an anagram of 'ENDORSEMENT'.
(Other definitions for endorsement that I've seen before include "Support and approval" , "Official sanction or approval" , "unwelcome to offending motorists" , "Public approval" , "okay?" .)