Scion temporarily unattracted to sporting expedition (8)

I believe the answer is:

offshoot

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

'scion' is the definition.
(I've seen this in another clue)

I don't understand the rest of the clue.

(Other definitions for offshoot that I've seen before include "Subsidiary product or branch" , "Business subdivision, say" , "sequel?" , "Branch; spin-off" , "Sucker" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app