Linked online posts with suspect death? That's about right (6)
I believe the answer is:
thread
'linked online posts with' is the definition.
I can't judge whether this definition defines the answer.
'suspect death? that's about right' is the wordplay.
'suspect' indicates anagramming the letters.
'that's about' means one lot of letters goes inside another.
'right' becomes 'R' (common abbreviation).
'death' anagrammed gives 'thead'.
'thead' enclosing 'r' is 'THREAD'.
Can you help me to learn more?
(Other definitions for thread that I've seen before include "Hatred (anag)" , "clothes casually cut" , "Thin strand" , "Storyline" , "Line of cotton - plot (of book, film)" .)