Crossword Genius

Teacher's letter to the Inland Revenue (3)

Ross

I believe the answer is:

sir

'teacher's' is the definition.
(way of addressing a male teacher)

'letter to the inland revenue' is the wordplay.
'letter' becomes 's' ().
'to the inland revenue' becomes 'ir' (abbreviation for Inland Revenue).
's'+'ir'='SIR'

(Other definitions for sir that I've seen before include "Title given to baronet" , "Gentleman's form of address" , "... ___ John Major" , "Poet and novelist" , "Noble title of undesirable kind" .)

I've seen this clue in the Evening Standard.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.