Tense chap dismissing first bank employee (6)
I believe the answer is:
teller
'bank employee' is the definition.
(I've seen this before)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for teller that I've seen before include "one gives relation" , "Counter of votes or a bank employee" , "who worked on the hydrogen bomb" , "Bank cashier or narrator of story" , "Election official" .)