New Barking riots left hole under bridge (7)
I believe the answer is:
nostril
'hole under bridge' is the definition.
The answer and definition can be both body parts as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'new barking riots left' is the wordplay.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'barking' is an anagram indicator ('barking' can informally mean mad).
'left' becomes 'l' (common abbreviation).
'riots' with letters rearranged gives 'ostri'.
'n'+'ostri'+'l'='NOSTRIL'
Can you help me to learn more?
(Other definitions for nostril that I've seen before include "Nasal cavity" , "One of two holes in the head!" , "Nasal feature" , "Aperture in nose" , "A hole in the head" .)