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Super song, played now and then by British youngster (5)

Ross

I believe the answer is:

sprog

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

'youngster' is the definition.
(I know that sprog is a type of youngster)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for sprog that I've seen before include "Infant" , "Kid" , "Child, colloquially" , "Child; recruit (mil. slang)" , "Baby (slang)" .)

I've seen this clue in The Irish Times.
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