In art, does it pass as a special language? (5)
I believe the answer is:
argot
'a special language?' is the definition.
(I've seen this before)
'in art does it pass' is the wordplay.
'in' indicates putting letters inside.
'art does' becomes 'ar' (I can't justify this - if you can you should give a lot more credence to this answer).
'it' becomes ''t' (abbreviation. e.g. in 'tis).
'pass' becomes 'go' (synonyms).
'ar'+'t'='art'
'art' enclosing 'go' is 'ARGOT'.
'as' is the link.
Can you help me to learn more?
(Other definitions for argot that I've seen before include "Kind of slang" , "Groat (anag)" , "Specialised language" , "Slang, patois" , "Patois for groat" .)