Crossword Genius

Afterwards put a trainee on edge (7)

Ross

I believe the answer is:

lateral

'edge' is the definition.
(thesaurus)

'afterwards put a trainee' is the wordplay.
'afterwards' becomes 'later' (synonyms).
'put' says to put letters next to each other.
'trainee' becomes 'l' (as in an L-plate for a learner driver).
'later'+'a'+'l'='LATERAL'

'on' acts as a link.

(Other definitions for lateral that I've seen before include "Sort of thinking" , "Sideways, like creative thinking" , "Relating to the side" , "Towards the side" , "This kind of sideways thinking does not use conventional logic" .)

I've seen this clue in The Mirror.
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