A royal meeting calls for new coats (5)
I believe the answer is:
ascot
'a royal meeting' is the definition.
(I've seen this before)
'new coats' is the wordplay.
'new' indicates an anagram.
'coats' with letters rearranged gives 'ASCOT'.
'calls for' acts as a link.
(Other definitions for ascot that I've seen before include "racing centre" , "Berkshire racecourse - coast (anag)" , "English racecourse in Berkshire" , "sporting venue" , "Type of necktie" .)