Flasher disturbing Isabel on beach (7,6)
I believe the answer is:
belisha beacon
'flasher' is the definition.
Both the definition and answer are singular nouns.
Maybe there's an association between them I don't understand?
'disturbing isabel on beach' is the wordplay.
'disturbing' indicates an anagram (I've seen this in other clues).
'isabel'+'on'+'beach'='isabelonbeach'
'isabelonbeach' is an anagram of 'BELISHA BEACON'.
Can you help me to learn more?
(Other definitions for belisha beacon that I've seen before include "Flashing marker alongside1 across" , "Road crossing light" , "Zebra crossing light" , "light by the way" , "Light indicating pedestrian crossing" .)