Be surrounded by everyone in family on arriving at last (4,5)

I believe the answer is:

fall among

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'be surrounded' is the definition.
I can't tell whether this defines the answer.

'everyone in family on arriving at last' is the wordplay.
'everyone' becomes 'all' (all people).
'in' indicates putting letters inside.
'family' becomes 'fam'.
'at last' says to take the final letters.
The final letter of 'arriving' is 'g'.
'all' going inside 'fam' is 'fallam'.
'fallam'+'on'+'g'='FALL AMONG'

'by' is the link.

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I've seen this clue in The Independent.

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