US politician eager to crush Yankee rabble-rousing (8)

I believe the answer is:

demagogy

'rabble-rousing' is the definition.

'us politician eager to crush yankee' is the wordplay.
'us politician' becomes 'dem' (short for Democrat).
'eager' becomes 'agog' (I've seen this before).
'to crush' means one lot of letters go next to another (in a down clue, some letters go on top of others).
'yankee' becomes 'y' (phonetic alphabet: alpha, bravo, charlie etc.).
'dem'+'agog'+'y'='DEMAGOGY'

I've seen this clue in The Times.

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