Latest Pole, terribly sweet (6)
I believe the answer is:
newest
'latest' is the definition.
(synonyms)
'pole terribly sweet' is the wordplay.
'pole' becomes 'n' (abbreviation for North, as in North Pole).
'terribly' indicates an anagram.
'sweet' with letters rearranged gives 'ewest'.
'n'+'ewest'='NEWEST'
(Other definitions for newest that I've seen before include "Most original" , "Most pristine or latest" , "most up-to-date" , "Superlatively modern" , "most recently released?" .)