Crossword Genius

Discouraging thing for the contractor to say? (4)

Ross

I believe the answer is:

dont

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'contractor to say?' is the definition.
I can't tell whether this definition defines the answer.

'discouraging thing for the' is the wordplay.
'discouraging thing' becomes 'don' (I can't justify this - if you can you should give a lot more credence to this answer).
'for' says to put letters next to each other.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'don'+'t'='DONT'

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