Scholarly and rude about wearing tie (7)
I believe the answer is:
erudite
'scholarly' is the definition.
('erudite' can be similar in meaning to 'scholarly')
'rude about wearing tie' is the wordplay.
'about' indicates an anagram.
'wearing' indicates an anagram (wear can mean to become damaged).
'rude' anagrammed gives 'erud'.
'tie' with letters rearranged gives 'ite'.
'erud'+'ite'='ERUDITE'
'and' is the link.
(Other definitions for erudite that I've seen before include "Learned and scholarly" , "Showing profound knowledge" , "Due rite (anag.)" , "Learned and literate" , "Rue diet for the learned" .)