What does the cryptic crossword clue "Remix a Spencer Davis hit from the late 70s (13)" mean?

The wordplay uses an anagram. anagram of A SPENCER DAVIS = SPACEINVADERS The answer is SPACEINVADERS.

Remix a Spencer Davis hit from the late 70s (13)

Independent Cryptic #11845 | 20 Across | 2024-09-26 flower