The Samurai strangely far from professional (10)

I believe the answer is:

amateurish

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

'far from professional' is the definition.
I can't judge whether this definition defines the answer.

'the samurai strangely' is the wordplay.
'strangely' is an anagram indicator.
'the'+'samurai'='thesamurai'
'thesamurai' anagrammed gives 'AMATEURISH'.

Can you help me to learn more?

(Other definitions for amateurish that I've seen before include "Lay" , "Inept, unskilful" , "using little craft, perhaps" , "done imperfectly" , "Unprofessional" .)

I've seen this clue in The Times.

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