Crossword Genius

One that organises trips in LA can get very busy (6,6)

Ross

I believe the answer is:

travel agency

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

'one that organises trips' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.

'la can get very busy' is the wordplay.
'busy' is an anagram indicator.
'la'+'can'+'get'+'very'='lacangetvery'
'lacangetvery' anagrammed gives 'TRAVEL AGENCY'.

'in' acts as a link.

Can you help me to learn more?

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app