Short of money on these drugs (6)

I believe the answer is:

uppers

I believe this is a double definition.

'short of money on these' is the first definition.
(reference to the phrase 'on one's uppers')

'drugs' is the second definition.
(upper is a kind of drug)

(Other definitions for uppers that I've seen before include "The 25 [PENNILESS] are on these" , "Skint when on these" , "Drugs" , "Parts of shoes above the sole" , "the poor are on?" .)

I've seen this clue in The Times.

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