What does the cryptic crossword clue "Excitement of head abandoning merrymaking (7)" mean?

The definition is "Excitement". The wordplay uses a deletion. AROUSAL (deletion) = AROUSAL; definition: "Excitement" The answer is AROUSAL.

Excitement of head abandoning merrymaking (7)

Times Cryptic #29191 | 25 Across | 2025-03-31 flower