Life occasionally interrupts current sporting activity (7)

I believe the answer is:

golfing

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'sporting activity' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe you can see a link between them that I can't see?

'life occasionally interrupts current' is the wordplay.
'occasionally' means one should take alternating letters (letters taken at regular intervals or occasions).
'interrupts' is an insertion indicator.
'current' becomes 'going' (as in the going rate).
The alternating letters of 'life' are 'lf'.
'lf' placed within 'going' is 'GOLFING'.

Can you help me to learn more?

I've seen this clue in The Irish Times.

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