Time that is left for King Charles? (7)

I believe the answer is:

spaniel

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'king charles?' is the definition.
(King Charles spaniel is a breed of spaniel)

'time that is left' is the wordplay.
'time' becomes 'span' (I can't explain this - if you can you should believe this answer much more).
'that is' becomes 'ie' (abbreviation for id est, 'that is' in Latin).
'left' becomes 'l' (common abbreviation).
'span'+'ie'+'l'='SPANIEL'

'for' is the link.

Can you help me to learn more?

(Other definitions for spaniel that I've seen before include "Alpines (anag)" , "Springer- - -" , "Animal" , "Long-eared dog" , "See 13" .)

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