Take a turn and use razor, taking top off a good half of these (7)

I believe the answer is:

haveago

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'use razor taking top off a good half of these' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'take a turn' is the wordplay.
'take' becomes 'have' (synonyms).
'turn' becomes 'go' (a person's move in a board game).
'have'+'a'+'go'='HAVEAGO'

'and' is the link.

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I've seen this clue in The Irish Times.

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