Ostentatious property where violence may break out (10)

I believe the answer is:

flashpoint

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'violence may break out' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'ostentatious property' is the wordplay.
'ostentatious' becomes 'flash' (I've seen this before).
'property' becomes 'point' (point is a kind of property).
'flash'+'point'='FLASHPOINT'

'where' acts as a link.

Can you help me to learn more?

(Other definitions for flashpoint that I've seen before include "moment of emergency" , "Moment when hostility flares up" .)

I've seen this clue in The Telegraph.

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