Crossword Genius

Prevent evacuation of politicians worried about inside information (10)

Ross

I believe the answer is:

constipate

I'm a little stuck... Click here to teach me more about this clue!

'prevent evacuation' is the definition.
I can't judge whether this defines the answer.

'politicians worried about inside information' is the wordplay.
'politicians' becomes 'cons' (short for Conservatives).
'worried' becomes 'ate' (something worrying may eat someone up).
'about' is a charade indicator (letters next to each other).
'inside information' becomes 'tip' (I've seen this in another clue).
'ate' after 'tip' is 'tipate'.
'cons'+'tipate'='CONSTIPATE'

'of' is the link.

Can you help me to learn more?

I've seen this clue in The Guardian.
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