Embarrassing books about English and Scottish sport (3-7)

I believe the answer is:

toe-curling

I'm a little stuck... Click here to teach me more about this clue!

'embarrassing' is the definition.
(I've seen this before)

'books about english and scottish sport' is the wordplay.
'books' becomes 'OT' (abbreviation for Old Testament).
'about' is a reversal indicator.
'english' becomes 'E' (abbreviation as in OED).
'and' is a charade indicator (letters next to each other).
'scottish sport' becomes 'curling' (curling is a sport. I am not sure about the 'scottish' bit.).
'ot' in reverse letter order is 'to'.
'to'+'e'+'curling'='TOE-CURLING'

Can you help me to learn more?

(Another definition for toe-curling that I've seen is " Acutely embarrassing".)

I've seen this clue in The Times.

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