Deliverer of goods tricks uninformed worker needing dispatch (9)
I believe the answer is:
consignor
'deliverer of goods' is the definition.
(person shipping a consignment of goods)
'tricks uninformed worker needing dispatch' is the wordplay.
'tricks' becomes 'cons' (trick can mean to scam or con).
'uninformed' becomes 'ignorant' (I've seen this in another clue).
'worker' becomes 'ant' (worker is a type of ant).
'needing dispatch' is a deletion indicator.
'ignorant' with 'ant' taken out is 'ignor'.
'cons'+'ignor'='CONSIGNOR'
(Another definition for consignor that I've seen is " transmitter".)