Fellow the Inland Revenue are about to have shot (4)
I believe the answer is:
igor
'fellow' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?
'inland revenue are about to have shot' is the wordplay.
I cannot really see how this works, but
'shot' could be 'go' (both can mean an attempt) and 'go' is located in the answer.
'inland revenue' could be 'ir' (abbreviation for Inland Revenue) and 'ir' is present in the leftover letters.
No letters remain.
This explanation may well be incorrect...
'the' acts as a link.
Can you help me to learn more?
(Other definitions for igor that I've seen before include "Russian man" , "Hero of Borodin" , "Maybe 8 [SIKORSKY]" , "Prince of Russian opera" , "Prince in Borodin's opera" .)