Something cutting spotted after prayer for the dead (6)
I believe the answer is:
ripsaw
'something cutting' is the definition.
I can't judge whether this definition defines the answer.
'spotted after prayer for the dead' is the wordplay.
'spotted' becomes 'saw' (spot can mean to see).
'after' says to put letters next to each other.
'prayer for the dead' becomes 'RIP' (rest in peace).
'saw' after 'rip' is 'RIPSAW'.
Can you help me to learn more?
(Other definitions for ripsaw that I've seen before include "Coarse wood cutter" , "Cutting tool" , "It cuts along the grain" .)