Crossword Genius

Compose a ballad or cry before departure (3,6)

Ross

I believe the answer is:

all aboard

I'm a little stuck... Click here to teach me more about this clue!

'departure' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'compose a ballad or cry' is the wordplay.
'compose' is an anagram indicator.
'cry' shows a homophone (sound like) (cried aloud).
'or' sounds like 'oar'.
'ballad'+'oar'='balladoar'
'balladoar' is an anagram of 'ALL ABOARD'.

'before' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
Want a hint initially instead of a full solution? Install my app