Lie ramrod straight if you want it delivered home (4,5)

I believe the answer is:

mail order

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'you want it delivered home' is the definition.
I can't judge whether this definition defines the answer.

'lie ramrod straight' is the wordplay.
'straight' indicates anagramming the letters.
'lie'+'ramrod'='lieramrod'
'lieramrod' anagrammed gives 'MAIL-ORDER'.

'if' acts as a link.

Can you help me to learn more?

(Other definitions for mail order that I've seen before include "purchased by post" , "One way to get delivery" , "Shopping by post" , "that one's sent for?" , "type of catalogue" .)

I've seen this clue in The Hindu.

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