Salad bar's boss, awfully unabashed (2,4,2,5)

I believe the answer is:

as bold as brass

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'unabashed' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'salad bar's boss awfully' is the wordplay.
'awfully' indicates an anagram.
'salad'+'bars'+'boss'='saladbarsboss'
'saladbarsboss' with letters rearranged gives 'AS BOLD AS BRASS'.

Can you help me to learn more?

(Other definitions for as bold as brass that I've seen before include "Confident to the point of impudence" , "Blatantly unashamed" .)

I've seen this clue in The Everyman puzzle in The Observer.

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