Crossword Genius

Embed motorway scheme within it (7)

Ross

I believe the answer is:

implant

'embed' is the definition.
('implant' can be a synonym of 'embed')

'motorway scheme within it' is the wordplay.
'motorway' becomes 'm'.
'scheme' becomes 'plan' (I've seen this before).
'within' means one lot of letters goes inside another.
'm'+'plan'='mplan'
'mplan' put into 'it' is 'IMPLANT'.

(Other definitions for implant that I've seen before include "Introduce" , "Fix firmly" , "Something surgically grafted into body" , "New element in trap" , "Establish" .)

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app