Fancy single person who might be enchanting? (5)
I believe the answer is:
image
'fancy' is the definition.
(synonyms)
'single person who might be enchanting?' is the wordplay.
'single' becomes 'i' (one).
'person who might be enchanting?' becomes 'mage'.
'i'+'mage'='IMAGE'
(Other definitions for image that I've seen before include "personality" , "Metaphor; figure" , "Figure (of speech?)" , "Visualisation" , "sculpture" .)