Affectedly dainty or refined (4)
I believe the answer is:
twee
I believe this is a double definition.
'affectedly dainty' is the first definition.
(I've seen this before)
'refined' is the second definition.
(similar in meaning)
(Other definitions for twee that I've seen before include "Overly cute" , "Excessively quaint" , "Precious - sentimental" , "Overly precious" , "Excessively sweet" .)