Penetrating government circles (6)

I believe the answer is:

goring

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But I can't explain it at all! Could you help me understand?

(Other definitions for goring that I've seen before include "Piercing with a horn or tusk" , "Thames town; stabbing with a horn/tusk" , "Hermann --, WW2 Nazi" , "acting bullishly?" , "penetration" .)

I've seen this clue in The Hindu.

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