Worrisome tour organised over showy jewels (9)

I believe the answer is:

troubling

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'worrisome' is the definition.
(I know that worrisome can be written as troubling)

'tour organised over showy jewels' is the wordplay.
'organised' indicates an anagram.
'over showy jewels' becomes 'bling' (I am not sure about this - if you are sure you should believe this answer much more).
'tour' with letters rearranged gives 'trou'.
'trou'+'bling'='TROUBLING'

Can you help me to learn more?

(Other definitions for troubling that I've seen before include "Burdensome" , "causing distress" .)

I've seen this clue in the Sydney Morning Herald.

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