Timely end for fellow (3)
I believe the answer is:
ely
'timely end for fellow' is the definition.
The definition suggests a singular noun which matches the answer.
'timely end for fellow' is the wordplay.
'end' suggests the final letters.
'for' means one lot of letters go next to another (I've seen this in other clues).
'fellow' becomes 'el' (I can't explain this - if you can you should give a lot more credence to this answer).
The final letter of 'timely' is 'y'.
'y' after 'el' is 'ELY'.
Can you help me to learn more?
(Other definitions for ely that I've seen before include "East Anglian city" , "Cathedral city in Cambridgeshire" , "Cambs. city" , "Diocese in Eastern England" , "Cambs cathedral" .)