The solitary Mr Sloan (3)
I believe the answer is:
tod
This might be a double definition.
'the solitary mr' is the first definition.
'Tod' can be an answer for 'mr'. I'm not certain of the 'the solitary' bit.
'sloan' is the second definition.
Both the definition and answer are singular nouns.
Maybe there's a link between them I don't understand?
Can you help me to learn more?
(Other definitions for tod that I've seen before include "One's alone on this" , "Former English weight for wool - dot it" , "If you're on it, you're on your own" , "Fox" , "Sly person" .)