Called about Channel Islands sports activity (6)

I believe the answer is:

racing

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'sports activity' is the definition.
'racing' can be an answer for 'activity' (racing is a kind of activity). I'm unsure of the 'sports' bit.

'called about channel islands' is the wordplay.
'called' becomes 'rang' ('ring' can be a synonym of 'call').
'about' is an insertion indicator.
'channel islands' becomes 'CI'.
'rang' placed around 'ci' is 'RACING'.

Can you help me to learn more?

(Other definitions for racing that I've seen before include "Speed sport" , "Epsom, Aintree sport" , "The sport of kings" , "activity on track" , "Competing in speed contests" .)

I've seen this clue in The Times.

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