Young swimmers adept, so swimming round lake (8)

I believe the answer is:

tadpoles

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'young swimmers' is the definition.
'tadpoles' can be an answer for 'swimmers' (I have seen 'Little swimmers' mean 'tadpoles' so perhaps 'swimmers' could also mean 'tadpoles'). I am not certain of the 'young' bit.

'adept so swimming round lake' is the wordplay.
'swimming' indicates anagramming the letters.
'round' is an insertion indicator.
'lake' becomes 'L' (geographical abbreviation).
'adept'+'so'='adeptso'
'adeptso' anagrammed gives 'tadpoes'.
'tadpoes' going around 'l' is 'TADPOLES'.

Can you help me to learn more?

(Other definitions for tadpoles that I've seen before include "Larval frogs" , "Pond-life" , "Immature frogs" , "Young frogs" , "Little swimmers" .)

I've seen this clue in The Telegraph.

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