How to sum up foreign nobleman (5)

I believe the answer is:

count

I believe this is a double definition.

'how to sum up' is the first definition.
(how to do sums)

'foreign nobleman' is the second definition.
(count is an aristocratic title in some countries)

(Other definitions for count that I've seen before include "Titled man" , "twenty three [NOBLE] from abroad" , "Nobleman - enumerate" , "Dracula, say" , "Total" .)

I've seen this clue in The Times.

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