Scrap boisterous practical joke (3)
I believe the answer is:
rag
This might be a double definition.
'scrap' is the first definition.
(both can mean a piece of material)
'boisterous practical joke' is the second definition.
'rag' can be an answer for 'joke' (rag is a kind of joke). I am not certain of the 'boisterous practical' bit.
Can you help me to learn more?
(Other definitions for rag that I've seen before include "Tatter; make fun of" , "Torn cloth or students' shindig" , "Piece of music" , "Syncopated piano music" , "Student fundraiser" .)