Secure support for final run (6,3)

I believe the answer is:

anchor leg

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'final run' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'secure support' is the wordplay.
'secure' becomes 'anchor' (anchoring is a kind of securing).
'support' becomes 'leg' (leg is a kind of support).
'anchor'+'leg'='ANCHOR LEG'

'for' is the link.

Can you help me to learn more?

I've seen this clue in The Daily Express.

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