Dignitary gets great syrup (6)
I believe the answer is:
bigwig
'dignitary' is the definition.
(I've seen this before)
'great syrup' is the wordplay.
'great' becomes 'big' (synonyms).
'syrup' becomes 'wig' ('syrup of fig' is Cockney rhyming slang for 'wig').
'big'+'wig'='BIGWIG'
'gets' is the link.
(Other definitions for bigwig that I've seen before include "important figure" , "Important person (slang)" , "Mogul" , "Dignitary (sl.)" , "Important person, with large, bald head?" .)