They reckon they work in a bank (7)
I believe the answer is:
tellers
'they' is the definition.
Both the definition and answer are plural nouns.
Maybe they are linked in a way I don't understand?
'reckon they work in a bank' is the wordplay.
I cannot quite see how this works, but
'work in a bank' could be 'tell' (I've seen this before) and 'tell' is found in the answer.
The remaining letters 'ers' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for tellers that I've seen before include "Bank cashiers" , "Bank employees" , "who are recounting" , "Vote counters" .)