Pink-cheeked (4)
I believe the answer is:
rosy
'pink-cheeked' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for rosy that I've seen before include "Blushing - optimistic" , "Hopeful; blushing" , "Pink; promising" , "Promising; hopeful" , "Of the future, promising like flower" .)