Might it possibly do this to a Low Churchman? (7)
I believe the answer is:
incense
'might it possibly do this to a low churchman?' is the definition.
The definition suggests a singular noun which matches the answer.
This is all the clue.
Can you help me to learn more?
(Other definitions for incense that I've seen before include "Sweet-smelling spice" , "Perfume - inflame with anger" , "A High Church feature" , "Infuriate" , "It produces a fragrant odour when burnt" .)