Crossword Genius

Tip of little finger sliced off, black (4)

Ross

I believe the answer is:

inky

'black' is the definition.
(similar in meaning)

I can't explain the rest of the clue.

(Other definitions for inky that I've seen before include "Marked by leaky pen" , "Leaked on by pen" , "Black; drunk (Aus. sl.)" , "Like writing fluid" , "Like the printing trade" .)

I've seen this clue in The Guardian.
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