Genius 150

[schweiss]

Any clues to the central theme: After disc appears, go into decline and disaster! Avoid- their sound- we've been hearing it for five years (3,9)

[EllisB]

In first word - disc is just 'O'; next two letters are to be inserted as per 'theme'.
2nd word is made up of 3 syllables - each sounds like other words as clued i.e. die, wreck, shun ;-)

[schweiss]

Hmmm, off direction? Thanks for the hints.

[scorpiojo]

Not off