Yours truly hit (6,3)
I believe the answer is:
number one
I believe this is a double definition.
'yours truly' is the first definition.
(I've seen this before)
'hit' is the second definition.
(I've seen this before)
(Other definitions for number one that I've seen before include "Yours truly" , "Naval first lieutenant; foremost person/thing" , "top of the pops" , "Informally the self, numerically speaking" , "top man?" .)