Regularly clubbish, helpful youngsters (4)

I believe the answer is:

cubs

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'helpful youngsters' is the definition.
'cubs' can be an answer for 'youngsters' (cub can mean a baby or child). I'm not sure about the 'helpful' bit.

'regularly clubbish' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
The alternate letters of 'clubbish' are 'CUBS'.

Can you help me to learn more?

(Other definitions for cubs that I've seen before include "Young foxes" , "Whelps" , "Junior Scouts" , "Young wolves" , "Baby bears or foxes" .)

I've seen this clue in The Everyman puzzle in The Observer.

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