Face of single male taken by beauty (7)
I believe the answer is:
grimace
'face' is the definition.
(synonyms)
'single male taken by beauty' is the wordplay.
'single' becomes 'I' (one).
'male' becomes 'm' (common abbreviation).
'taken by' indicates putting letters inside.
'beauty' becomes 'grace' (I have seen 'beauty of movement' mean 'grace' so perhaps 'beauty' could also mean 'grace').
'i'+'m'='im'
'im' put within 'grace' is 'GRIMACE'.
'of' is the link.
(Other definitions for grimace that I've seen before include "betray disgust" , "Distortion of the face" , "Pained expression" , "Twisted facial expression" , "Wry look" .)