English teacher about to get pay increase (4)
I believe the answer is:
rise
'pay increase' is the definition.
(I've seen this in other clues)
'english teacher about' is the wordplay.
'english' becomes 'E' (abbreviation).
'teacher' becomes 'sir' (way of addressing a male teacher).
'about' is a reversal indicator.
'e'+'sir'='esir'
'esir' written backwards gives 'RISE'.
'to get' acts as a link.
(Other definitions for rise that I've seen before include "Hill" , "hike" , "Growth" , "Pay increase" , "Move upward" .)