Snack money primarily spent on credit (10)
I believe the answer is:
breadstick
'snack' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'money primarily spent on credit' is the wordplay.
'money' becomes 'bread' (bread is slang for money).
'primarily' indicates taking the first letters.
'on' says to put letters next to each other.
'credit' becomes 'tick' (on tick can mean purchased on credit).
The first letter of 'spent' is 's'.
'bread'+'s'+'tick'='BREADSTICK'
Can you help me to learn more?
(Other definitions for breadstick that I've seen before include "used to produce something to nibble" , "Grissino" .)