Zebra crossing light (7,6)
I believe the answer is:
belisha beacon
'zebra crossing light' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for belisha beacon that I've seen before include "Light indicating pedestrian crossing" , "Zebra crossing light" , "Flashing marker alongside1 across" , "Road crossing light" , "light by the way" .)