Job for a fellow named Pat (7)
I believe the answer is:
postman
'named pat' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'job for a fellow' is the wordplay.
'job' becomes 'post' (post is a kind of job).
'for' means one lot of letters go next to another.
'a fellow' becomes 'man' (fellow can mean a man).
'post'+'man'='POSTMAN'
Can you help me to learn more?
(Other definitions for postman that I've seen before include "one delivers" , "Letter deliverer" , "Mail deliverer" , "Chap with letters" , "No stamp needed, stangely, for this job" .)