Our mail’s redirected to a place in the sun (8)
I believe the answer is:
solarium
'a place in the sun' is the definition.
'our mail's redirected' is the wordplay.
'redirected' indicates anagramming the letters.
'our'+'mails'='ourmails'
'ourmails' is an anagram of 'SOLARIUM'.
'to' is the link.
(Other definitions for solarium that I've seen before include "Room for sunbathing" , "Tanning lounge" , "Room where people can benefit from exposure to sunlight" , "Sun parlour" , "conservatory?" .)