Girl, maiden in stormy dales (6)
I believe the answer is:
damsel
'girl' is the definition.
(I know that damsel is a type of maid)
'maiden in stormy dales' is the wordplay.
'maiden' becomes 'm' (cricket abbreviation).
'in' means one lot of letters goes inside another.
'stormy' is an anagram indicator.
'dales' with letters rearranged gives 'dasel'.
'm' going inside 'dasel' is 'DAMSEL'.
(Other definitions for damsel that I've seen before include "little fly" , "(Poetically) a young unmarried woman" , "Young woman (archaic)" , "Young lady of old, perhaps in distress" , "Old-fashioned young woman" .)