Petulant woman feeding wandering sheep (7)
I believe the answer is:
peevish
'petulant' is the definition.
(I know that petulant can be written as peevish)
'woman feeding wandering sheep' is the wordplay.
'woman' becomes 'Vi' (short for Violet).
'feeding' means one lot of letters goes inside another.
'wandering' indicates anagramming the letters.
'sheep' with letters rearranged gives 'peesh'.
'vi' inserted within 'peesh' is 'PEEVISH'.
(Other definitions for peevish that I've seen before include "Fractious" , "Easily irritated or annoyed" , "Showing an irritable disposition" , "Spiteful" , "Cranky, easily annoyed" .)