Dismiss the necessary four from Berlin, not five (7)
I believe the answer is:
cashier
'dismiss' is the definition.
(I've seen this before)
'necessary four from berlin not five' is the wordplay.
'necessary' becomes 'cash' (I can't explain this - if you can you should believe this answer much more).
'four from berlin' becomes 'vier' ('four' in German).
'not' suggests deleting specific letters.
'five' becomes 'V' (Roman numeral).
'vier' with 'v' taken out is 'ier'.
'cash'+'ier'='CASHIER'
'the' acts as a link.
Can you help me to learn more?
(Other definitions for cashier that I've seen before include "till tender?" , "Teller - dismiss in disgrace" , "person taking the money" , "Dismiss; receiver and payer of money" , "Dismiss (someone) from the armed forces in disgrace" .)