What does the cryptic crossword clue "Like a catchy tune Mike included in album he composed (8)" mean?

The wordplay uses an anagram. anagram of ALBUM (synonym="ALBUM") + HE (synonym="HE") + M (synonym="Mike") = HUMMABLE The answer is HUMMABLE.

Like a catchy tune Mike included in album he composed (8)

Guardian Cryptic #29092 | 5 Down | 2023-06-09 flower