Golf lessons put out without number? (8)

I believe the answer is:

songless

'without number?' is the definition.
('number' can be 'song' (musical number) so maybe 'without number?' can be ''songless')

'golf lessons put out' is the wordplay.
'golf' becomes 'g' (phonetic alphabet: alpha, bravo, charlie etc.).
'put out' indicates anagramming the letters.
'g'+'lessons'='glessons'
'glessons' anagrammed gives 'SONGLESS'.

I've seen this clue in The Times.

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