Honest Gene somehow became a tourist attraction (10)

I believe the answer is:

stonehenge

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

'a tourist attraction' is the definition.
The definition suggests a singular noun which matches the answer.

'honest gene somehow' is the wordplay.
'somehow' is an anagram indicator.
'honest'+'gene'='honestgene'
'honestgene' is an anagram of 'STONEHENGE'.

'became' is the link.

Can you help me to learn more?

(Other definitions for stonehenge that I've seen before include "rock group" , "Ancient monument site" , "Wiltshire attraction" , "Megalithic monument on Salisbury Plain" , "Druid comes here" .)

I've seen this clue in The Daily Express.

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