Crossword Genius

Shamefully unruly, only big (7)

Ross

I believe the answer is:

ignobly

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

'shamefully' is the definition.
Both the answer and definition are adverbs. Perhaps you can see an association between them that I don't see?

'unruly only big' is the wordplay.
'unruly' indicates an anagram.
'only'+'big'='onlybig'
'onlybig' is an anagram of 'IGNOBLY'.

Can you help me to learn more?

(Other definitions for ignobly that I've seen before include "In a despicable manner" , "In a dishonourable way" , "Basely" .)

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