Tabloid rang missing person finally (3)
I believe the answer is:
rag
'tabloid' is the definition.
(informal term for a tabloid newspaper)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for rag that I've seen before include "Disreputable newspaper" , "Fun week for college students" , "Torn piece of cloth or university japes" , "Cloth; bait" , "Make fun of; scrap" .)