Maybe Simon and Garfunkel's Sound of Silence toasted thus? (3-5)
I believe the answer is:
two-piece
'toasted thus?' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives can occasionally mean the same thing.
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for two-piece that I've seen before include "Like some suits" , "Consisting of a pair of matching items" .)