The headmaster-to-be
The late headmaster
The present headmaster
The headmaster present
The actual headmaster
The headmaster in question
The so-called headmaster
The would-be headmaster
The ex-headmaster
The stop-gap headmaster
The sacked headmaster
a) The man determined to be headmaster made a speech.
b) The headmaster, who is now dead, made a speech.
c) The headmaster who was at the occasion made a speech.
d) The man who had previously been headmaster made a speech.
e) The man who is now headmaster made a speech.
f) The headmaster who wad dismissed made a speech.
g) The headmaster himself made a speech.
h) The man who was temporarily acting as headmaster until someone was appointed permanently made a speech.
i) The headmaster who is the subject of discussion made a speech.
j) The man who was due to take up his appointment as headmaster made a speech.
k) The headmaster, who 1 think is very bad at his job, made a speech.