Boys initially distribute exam, one marked before new term? (6,5)

I believe the answer is:
ballot paper
'one marked before new term?' is the definition.
The definition suggests a singular noun which matches the answer.
'boys initially distribute exam' is the wordplay.
'initially' indicates taking the first letters.
'distribute' becomes 'allot' (allotting is a kind of distributing).
'exam' becomes 'paper'.
The first letter of 'boys' is 'b'.
'b'+'allot'+'paper'='BALLOT PAPER'
Can you help me to learn more?
(Other definitions for ballot paper that I've seen before include "On which to record one's vote" , "Voting slip" .)
