Crossword Genius

Fluids doctored as beverages (4)

Ross

I believe the answer is:

inks

I'm a little stuck... Click here to teach me more about this clue!

'fluids' is the definition.
(ink is a kind of fluid)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for inks that I've seen before include "Printers' media" , "Printing fluids" , "Sink beneath writing fluids" , "Liquids used for printing" , "Printers' mediums" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app