Sales agents, for short (4)
I believe the answer is:
reps
'sales agents for short' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for reps that I've seen before include "Salesman, in short" , "Salesmen, in short" , "Travelling salespeople, in short" , "Travelling salesmen" , "Agents" .)