Upper-class nob somehow entered match, resistant to pressure (7)

I believe the answer is:

unbowed

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'match resistant to pressure' is the definition.
I can't judge whether this defines the answer.

'upper-class nob somehow entered' is the wordplay.
'upper-class' becomes 'u' (similar in meaning).
'somehow' is an anagram indicator.
'entered' becomes 'wed' (I can't explain this - if you can you should believe this answer much more).
'nob' anagrammed gives 'nbo'.
'u'+'nbo'+'wed'='UNBOWED'

Can you help me to learn more?

(Other definitions for unbowed that I've seen before include "Not having submitted to pressure" , "Upright, refusing to yield" , "Not vanquished, free" , "defiant?" , "Undo web? (anag)" .)

I've seen this clue in The Guardian.

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