Crossword Genius

Must I test out to be most obscene? (9)

Ross

I believe the answer is:

smuttiest

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

'most obscene?' is the definition.
Both the definition and answer are superlative adjectives. Maybe there's a link between them I don't understand?

'must i test out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'must'+'i'+'test'='mustitest'
'mustitest' with letters rearranged gives 'SMUTTIEST'.

'to be' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
Want a hint initially instead of a full solution? Install my app