Clever and pretty attractive (4)
I believe the answer is:
cute
I believe this clue is a double definition.
'clever' is the first definition.
(I've seen this in another clue)
'pretty attractive' is the second definition.
(cute can mean attractive)
'and' is the link.
(Other definitions for cute that I've seen before include "Attractive or ingenious" , "Quaintly pleasing" , "Small, delightful" , "Lovable" , "Charming, quaint" .)