Head of maintenance one calls getting stuck in the bog (6)

I believe the answer is:

miring

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'stuck in the bog' is the definition.
I can't judge whether this definition defines the answer.

'head of maintenance one calls' is the wordplay.
'head of' says to take the initial letters.
'one' becomes 'i' (Roman numeral).
'calls' becomes 'ring' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The first letter of 'maintenance' is 'm'.
'm'+'i'+'ring'='MIRING'

'getting' is the link.

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I've seen this clue in The Times.

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