No more playing golf? That’s disheartening (3-7)

I believe the answer is:

off-putting

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'golf? that's disheartening' is the definition.
I can't judge whether this definition defines the answer.

'no more playing' is the wordplay.
'no more' becomes 'off' (I can't explain this - if you can you should give a lot more credence to this answer).
'playing' becomes 'putting' (putting is a kind of playing).
'off'+'putting'='OFF-PUTTING'

Can you help me to learn more?

(Other definitions for off-putting that I've seen before include "Disconcerting" , "Discouraging" .)

I've seen this clue in The Hindu.

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