Flow strategy to improve business? (4-2,4)

I believe the answer is:

pick-up line

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'flow strategy' is the definition.
The definition suggests a singular noun which matches the answer.

'improve business?' is the wordplay.
'improve' becomes 'pick up' (picking up is a kind of improving).
'business?' becomes 'line' (as in someone's line of work).
'pickup'+'line'='PICK-UP LINE'

'to' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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