Double-decker backed partly onto edge of path (4)
I believe the answer is:
kerb
'onto edge of path' is the definition.
I can't tell whether this definition defines the answer.
'double-decker backed partly' is the wordplay.
'partly' says the answer is hidden in the clue (part of the clue is used).
'KERB' can be found hidden inside 'double decker backed'.
Can you help me to learn more?
(Other definitions for kerb that I've seen before include "Pavement edge" , "Roadside" , "Pavement edging" , "stone by the way" , "Roadway edge" .)