Select cap to be prepared for public display (9)

I believe the answer is:

spectacle

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

'public display' is the definition.
'spectacle' can be an answer for 'display' (spectacle is a kind of display). I'm not sure about the 'public' bit.

'select cap to be prepared' is the wordplay.
'to be prepared' is an anagram indicator.
'select'+'cap'='selectcap'
'selectcap' anagrammed gives 'SPECTACLE'.

'for' is the link.

Can you help me to learn more?

(Other definitions for spectacle that I've seen before include "Visually striking performance or display" , "Lavish entertainment" , "Picture" , "Interesting phenomenon - show" , "Showy pageant" .)

I've seen this clue in The Times.

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