Spectacular cognac I personally sampled, from the East (4)
I believe the answer is:
epic
'spectacular' is the definition.
'cognac i personally sampled from the east' is the wordplay.
'sampled' says the answer is hidden in the clue (I've seen this in other clues).
'from the east' says the letters should be written backwards.
'cipe' is hidden in the letters of 'cognac i personally'.
'cipe' backwards is 'EPIC'.
(Other definitions for epic that I've seen before include "Heroic, huge" , "Film or book on a grand scale" , "Long poem - awesome!" , "Guardian (body, beast)" , "Exodus, say" .)