Stroke face of innocent chubby little children (5)
I believe the answer is:
putti
'chubby little children' is the definition.
(putti are cherubic children in Renaissance art)
'stroke face of innocent' is the wordplay.
'stroke' becomes 'putt' (putt is a kind of stroke).
'face of' indicates taking the first letters.
The first letter of 'innocent' is 'i'.
'putt'+'i'='PUTTI'
(Other definitions for putti that I've seen before include "Infants pictured" , "strike one" , "Plump youth with kit off?" , "Cupids" , "angelic figures" .)