Content of jargon primarily this? (5)
I believe the answer is:
argot
'content of jargon primarily this?' is the definition.
The definition suggests a singular noun which matches the answer.
'content of jargon primarily this?' is the wordplay.
'content of' means to look at the middle letters.
'primarily' suggests taking the first letters.
The middle letters of 'jargon' are 'argo'.
The initial letter of 'this' is 't'.
'argo'+'t'='ARGOT'
Can you help me to learn more?
(Other definitions for argot that I've seen before include "Slang for a groat (5)" , "Patois for groat" , "Special language of a groat?" , "Cant" , "Kind of slang" .)