Goes out expecting big business sales introductions (4)
I believe the answer is:
ebbs
'goes out' is the definition.
(I've seen this in another clue)
'expecting big business sales introductions' is the wordplay.
'introductions' indicates taking the first letters (the letters which introduce the word).
The initial letters of 'expecting big business sales' is 'EBBS'.
(Other definitions for ebbs that I've seen before include "flags" , "Flows back or recedes" , "Goes out like tide" , "Flows back - declines" , "fades away" .)