Some local vendor to deliver new stock (5)
I believe the answer is:
calve
'deliver new stock' is the definition.
(give birth to calves - stock can mean cattle)
'some local vendor to' is the wordplay.
'some' says the answer is hidden in the clue (some parts of the word are used).
'CALVE' is hidden in the letters of 'local vendor to'.
(Other definitions for calve that I've seen before include "Split from the pack" , "Give birth (to whales or icebergs)" , "(Of ice) split from an iceberg" , "bear on ranch" , "Breed" .)