Be transparent about way to prepare shop for business? (6)

I believe the answer is:

openup

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'prepare shop for business?' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'be transparent about way' is the wordplay.
'be transparent' becomes 'open' (I've seen this in another clue).
'about way' becomes 'up' (I can't explain this - if you can you should believe this answer much more).
'open'+'up'='OPENUP'

'to' is the link.

Can you help me to learn more?

I've seen this clue in The Irish Times.

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