Riverbank creature, female, shrieking horribly (10)
I believe the answer is:
kingfisher
'riverbank creature' is the definition.
(bird that lives by a river)
'female shrieking horribly' is the wordplay.
'female' becomes 'f' (common abbreviation).
'horribly' is an anagram indicator.
'f'+'shrieking'='fshrieking'
'fshrieking' anagrammed gives 'KINGFISHER'.
(Other definitions for kingfisher that I've seen before include "Colourful river bird" , "Creature" , "Halcyon" , "flyer" , "Blue bird of the river" .)