Hi! As mature in a way but without much skill (10)

I believe the answer is:

amateurish

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

'without much skill' is the definition.
I can't judge whether this defines the answer.

'hi as mature in a way' is the wordplay.
'in a way' is an anagram indicator.
'hi'+'as'+'mature'='hiasmature'
'hiasmature' anagrammed gives 'AMATEURISH'.

'but' is the link.

Can you help me to learn more?

(Other definitions for amateurish that I've seen before include "done imperfectly" , "incompetent" , "rather inept" , "using little craft, perhaps" , "Rather 31 across" .)

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

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