Photographed out of doors? (7)

I believe the answer is:

exposed

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

'photographed' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Maybe there's a link between them I don't understand?

'out of doors?' is the wordplay.
'out of' becomes 'ex' ('out of' in Latin).
'doors?' becomes 'posed' (I can't justify this - if you can you should believe this answer much more).
'ex'+'posed'='EXPOSED'

Can you help me to learn more?

(Other definitions for exposed that I've seen before include "in the nude" , "at mercy of weather" , "Showed up" , "Deprived of cover" , "Unmasked, revealed" .)

I've seen this clue in The Telegraph, The Globe and Mail and The Guardian.

Want a hint initially instead of a full solution? Install my app