Easy to foster self-improvement (10)

I believe the answer is:

effortless

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'easy to foster self-improvement' is the definition.
I can't judge whether this defines the answer.

'easy to foster self' is the wordplay.
'easy' indicates an anagram (a loosened or easy version of the letters).
'foster'+'self'='fosterself'
'fosterself' is an anagram of 'EFFORTLESS'.

Can you help me to learn more?

(Other definitions for effortless that I've seen before include "Requiring no physical or mental exertion" , "Not showing any strain" , "a breeze?" , "easy" .)

I've seen this clue in the Sydney Morning Herald.

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