Numeral (6)
'numeral' is the definition.
(I know that numeral can be written as number)
This is the entire clue.
(Other definitions for number that I've seen before include "One may be irrational or negative" , "Digit, cipher" , "Comparatively torpid" , "Cardinal or ordinal" , "more insensitive" .)
'numeral' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for digit that I've seen before include "zero, one, two, three, four, five, six, seven, eight, or nine" , "A character" , "Finger; numeral" , "One in ten, say" , "one of several at hand" .)