Start to save our money for bread (9)
I believe the answer is:
sourdough
'for bread' is the definition.
(sourdough bread is a kind of bread)
'start to save our money' is the wordplay.
'start to' says to take the initial letters.
'money' becomes 'dough' (dough can informally mean money).
The first letter of 'save' is 's'.
's'+'our'+'dough'='SOURDOUGH'
(Other definitions for sourdough that I've seen before include "Leaven for making bread" , "Type of bread" , "Fermenting bread mixture - odour hugs (anag)" .)