Opera singer might see sign at the start of his antiquated music, maybe, and reflect on strange form (5,4)
I believe the answer is:
tenor clef
'strange form' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'opera singer might see sign at the start of his antiquated music maybe and reflect on' is the wordplay.
'reflect on' anagrams to 'TENOR CLEF'.
But, I am unsure how this is indicated.
Can you help me to learn more?
(Other definitions for tenor clef that I've seen before include "One on the staff" , "A stave marking for pitch" , "It has middle C on second- highest line" , "instruction for a musician" , "Character instructing musician" .)