Is it the boss we must see when someone's late? (7,8)

I believe the answer is:

funeral director

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

'we must see when someone's late?' is the definition.
I can't judge whether this defines the answer.

'is it the boss' is the wordplay.
'is it' becomes 'funeral' (I am not sure about this - if you are sure you should believe this answer much more).
'the boss' becomes 'director' (I've seen this before).
'funeral'+'director'='FUNERAL DIRECTOR'

Can you help me to learn more?

I've seen this clue in The Telegraph.

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