About time to replace a knight in continuously changing list (9)
I believe the answer is:
catalogue
'list' is the definition.
(catalogue is a kind of list)
'about time to replace a knight in continuously changing' is the wordplay.
I cannot really see how this works, but
'about' could be 'ca' (abbreviation for circa) and 'ca' is present in the answer.
'time' could be 't' (abbreviation) and 't' is located in the answer.
'a' is found in the answer.
The remaining letters 'logue' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for catalogue that I've seen before include "List of items for sale" , "From which we order" , "Record" , "Coagulate into kind of directory" , "Systematic list of items" .)