Splendour of Greece and Europe half-forgotten? (8)
I believe the answer is:
grandeur
'splendour' is the definition.
(synonyms)
'greece and europe half-forgotten?' is the wordplay.
'greece' becomes 'Gr' (abbreviation).
'half forgotten?' means to take half the letters.
'europe' cut in half is 'eur'.
'gr'+'and'+'eur'='GRANDEUR'
'of' is the link.
(Other definitions for grandeur that I've seen before include "Loftiness" , "Impressive splendour" , "Majesty (God's, Hopkins)" , "state" , "Splendour, impressiveness" .)