Part of people's language? (5)
I believe the answer is:
slang
'part of people's language?' is the definition.
'slang' can be an answer for 'language?' (slang is a kind of language). I am not sure about the 'part of people's' bit.
'of people's language?' is the wordplay.
'of' says the answer is hidden in the clue.
'SLANG' is hidden in the letters of 'peoples language'.
Can you help me to learn more?
(Other definitions for slang that I've seen before include "Colloquial language" , "Berate" , "Informal lingo" , "See 15" , "Be abusive" .)