Crossword Genius

Places to pose on letter (5)

Ross

I believe the answer is:

sites

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'places' is the definition.
(a site is a place or location)

'pose on letter' is the wordplay.
'pose' becomes 'sit' (synonyms).
'on letter' becomes 'es' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'sit'+'es'='SITES'

'to' acts as a link.

Can you help me to learn more?

(Other definitions for sites that I've seen before include "internet locations" , "Is set among building locations" , "Locates" , "Is set (anag)" , "Locations or positions, as for building" .)

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