Time that is left for King Charles? (7)
I believe the answer is:
spaniel
'king charles?' is the definition.
(King Charles spaniel is a breed of spaniel)
'time that is left' is the wordplay.
'time' becomes 'span' (I am not sure about this - if you are sure you should believe this answer much more).
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'left' becomes 'l' (common abbreviation).
'span'+'ie'+'l'='SPANIEL'
'for' acts as a 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" .)