People who came to a tragic end in coal mines (5)
I believe the answer is:
picts
'people who came' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'tragic end in coal mines' is the wordplay.
'end' suggests the final letters.
'in' means one lot of letters goes inside another.
'coal mines' becomes 'pits' (I've seen this in another clue).
The last letter of 'tragic' is 'c'.
'c' inserted into 'pits' is 'PICTS'.
'to a' is the link.
Can you help me to learn more?
(Other definitions for picts that I've seen before include "Ancient Northerners" , "People living in Scotland in Roman times" .)