Obtained primarily hoary Indian classic typeface (6)
I believe the answer is:
gothic
'typeface' is the definition.
(Gothic is an example)
'obtained primarily hoary indian classic' is the wordplay.
'obtained' becomes 'got' ('get' can be a synonym of 'obtain').
'primarily' says to take the initial letters.
The first letters of 'hoary indian classic' is 'hic'.
'got'+'hic'='GOTHIC'
(Other definitions for gothic that I've seen before include "Style of e.g. Notre-Dame, Chartres" , "See 6 ac" , "Hit cog badly to find a style of building" , "Of architecture with flying buttresses, for example" , "Style of architecture, literatureand film" .)