Not one with a good-looking peach, surely? (5,4)
I believe the answer is:
blind date
'peach surely?' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see a link between them that I can't see?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for blind date that I've seen before include "Film" , "Social engagement (entered into with one's eyes closed?)" , "Romantic meeting with someone unknown" , "Surprise assignation" , "Romantic meeting between strangers?" .)