Money from Pasteur offered (4)
I believe the answer is:
euro
'money' is the definition.
(currency of the Eurozone)
'from pasteur offered' is the wordplay.
'from' indicates the answer is hidden within the clue.
'EURO' is hidden in the letters of 'pasteur offered'.
(Other definitions for euro that I've seen before include "Major currency" , "Currency since 2002" , "Continental currency" , "French currency" , "Currency of Finland" .)