Member of clergy welcoming time in Swiss region (6)
I believe the answer is:
canton
'swiss region' is the definition.
(Switzerland is divided into cantons)
'member of clergy welcoming time' is the wordplay.
'member of clergy' becomes 'canon' (type of clergyman).
'welcoming' indicates putting letters inside (in sense of 'inviting in').
'time' becomes 't' (abbreviation).
'canon' placed around 't' is 'CANTON'.
'in' acts as a link.
(Other definitions for canton that I've seen before include "port in China" , "Old Chinatown" , "Area of Switzerland" , "Administrative subdivision of, eg, Switzerland" , "Swiss state" .)