Golf series -- they don't provide much coverage (1-7)

I believe the answer is:

g-strings

'they don't provide much coverage' is the definition.
(type of underwear using little material)

'golf series' is the wordplay.
'golf' becomes 'g' (phonetic alphabet: alpha, bravo, charlie etc.).
'series' becomes 'strings' (I've seen this in another clue).
'g'+'strings'='G-STRINGS'

I've seen this clue in The Telegraph.

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