Just a small exclamation by the bacon supplier (5)
I believe the answer is:
pigmy
'supplier' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for pigmy that I've seen before include "small creature" , "abnormally small person" .)