Crossword Genius

Guide staff follows to get a form of insurance (6)

Ross

I believe the answer is:

keyman

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

'get a form of insurance' is the definition.
I can't tell whether this definition defines the answer.

'guide staff follows' is the wordplay.
'guide' becomes 'key' (eg the key is the guide to a map).
'staff' becomes 'man' (as in staffing or manning a particular place).
'follows' is a charade indicator (letters next to each other).
'key'+'man'='KEYMAN'

'to' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish Times.
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