Firmly put the scheme to Edward (7)

I believe the answer is:

planted

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'firmly put the scheme to edward' is the definition.
I can't judge whether this defines the answer.

'put the scheme to edward' is the wordplay.
'put' is an insertion indicator.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'scheme' becomes 'plan' (synonyms).
'to edward' becomes 'Ed' (short for Edward).
'plan'+'ed'='planed'
't' going inside 'planed' is 'PLANTED'.

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(Other definitions for planted that I've seen before include "Set in the soil for growth" , "Put in the ground" .)

I've seen this clue in the Evening Standard.

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