Despatch in a chosen direction (4)
I believe the answer is:
send
'despatch' is the definition.
(I've seen this before)
'in a chosen direction' is the wordplay.
'in' says the answer is hidden in the clue.
'SEND' is hidden in the letters of 'chosen direction'.
(Other definitions for send that I've seen before include "Despatch, remit" , "and 2: Advise" , "Consign" , "Mail" , "Transmit; post" .)