Pack up the tents and make off? (6)

I believe the answer is:

decamp

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'make off?' is the definition.
(I've seen this before)

'pack up the tents' is the wordplay.
'pack up' becomes 'de' (I can't justify this - if you can you should believe this answer much more).
'the tents' becomes 'camp'.
'de'+'camp'='DECAMP'

'and' acts as a link.

Can you help me to learn more?

(Other definitions for decamp that I've seen before include "Split" , "Depart quickly and in secret" , "Bolt" , "Run away (from responsibility)" , "Mizzle" .)

I've seen this clue in The Irish News.

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