Most circumspect, using ears and wit (7)

I believe the answer is:

wariest

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

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

'using ears and wit' is the wordplay.
'using' indicates an anagram (the letters used in a different way).
'and' means one lot of letters go next to another.
'ears' put after 'wit' is 'witears'.
'witears' is an anagram of 'WARIEST'.

Can you help me to learn more?

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.