Angry piece provides typical sample (5,7)
I believe the answer is:
cross section
'typical sample' is the definition.
'cross section' can be an answer for 'sample' (I have seen 'Representative sample ' mean 'cross section' so perhaps 'sample' could also mean 'cross section'). I'm unsure of the 'typical' bit.
'angry piece' is the wordplay.
'angry' becomes 'cross' (cross can mean annoyed or angry).
'piece' becomes 'section' (both can mean a part of something).
'cross'+'section'='CROSS-SECTION'
'provides' acts as a link.
Can you help me to learn more?
(Other definitions for cross section that I've seen before include "Representative sample" , "formed when cut is implemented" , "St Helena's "invention"?" , "Fair sample" , "random sample" .)