Don't start chuckling after passing of dead relative (8)
I believe the answer is:
daughter
'relative' is the definition.
(daughter is a kind of relative)
'don't start chuckling after passing of dead' is the wordplay.
'don't start' means to remove the first letter.
'chuckling' becomes 'laughter' (I've seen this before).
'after' says to put letters next to each other.
'passing of dead' becomes 'd' (I can't justify this - if you can you should believe this answer much more).
'laughter' with its first letter taken away is 'aughter'.
'aughter' put after 'd' is 'DAUGHTER'.
Can you help me to learn more?
(Other definitions for daughter that I've seen before include "Female descendant" , "Female child" , "The guard (anag.)" , "Close relative" , "Family member" .)