Nathaniel turns up with a healthy look (3)
I believe the answer is:
tan
'a healthy look' is the definition.
The answer and definition can be both human attributes as well as being singular nouns.
Maybe there's a link between them I don't understand?
'nathaniel turns up' is the wordplay.
'nathaniel' becomes 'nat' (I've seen this in other clues).
'turns up' is a reversal indicator.
'nat' backwards is 'TAN'.
'with' is the link.
Can you help me to learn more?
(Other definitions for tan that I've seen before include "Process" , "Thrash" , "Sun-baked colour" , "Catch the sun" , "Lightish brown colour" .)