A Spaniard is a handsome fellow (6)

I believe the answer is:

adonis

'a handsome fellow' is the definition.
(Greek myth)

'a spaniard is' is the wordplay.
'spaniard' becomes 'don' (term for a Spanish gentleman).
'a'+'don'+'is'='ADONIS'

(Other definitions for adonis that I've seen before include "Handsome youth - said no (anag)" , "Handsome youth (Gr.)" , "Beautiful young man" , "Handsome youth - boy from Greek mythology" , "Archetype of male beauty" .)

I've seen this clue in the Evening Standard.

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