Endearingly pretty (4)
I believe the answer is:
cute
'endearingly pretty' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for cute that I've seen before include "Small, delightful" , "Delightfully pretty or dainty" , "Endearingly pretty" , "Precious" , "Charming, quaint" .)