Revealing this compiler's style's primarily tricky (8)
I believe the answer is:
immodest
'revealing' is the definition.
(thesaurus)
'this compiler's style's primarily tricky' is the wordplay.
'this compiler's' becomes 'im' (I've seen this in other clues).
'style's' becomes 'modes' ('mode' can be a synonym of 'style'**).
'primarily' suggests taking the first letters.
The first letter of 'tricky' is 't'.
'im'+'modes'+'t'='IMMODEST'
(Other definitions for immodest that I've seen before include "Offending against sexual mores in appearance" , "Lacking due decency" , "Shamelessly indecent" , "Boastful, given to showing off" , "bold" .)