Crossword Genius

Ably and supply (4)

Ross

I believe the answer is:

well

I believe this is a double definition.

'ably' is the first definition.
(to do something well is to do it ably or skilfully)

'supply' is the second definition.
(well can mean a supply or reservoir)

'and' acts as a link.

(Other definitions for well that I've seen before include "indeed" , "Lift-shaft" , "Healthy; extremely" , "Borehole" , "Healthy - water supply" .)

I've seen this clue in The Everyman puzzle in The Observer.
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