Clown outside old hotel in Turkish city (7)
I believe the answer is:
antioch
'turkish city' is the definition.
(I've seen this before)
'clown outside old hotel' is the wordplay.
'clown' becomes 'antic' (synonyms).
'outside' means one lot of letters goes inside another.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'antic' enclosing 'o' is 'antioc'.
'antioc'+'h'='ANTIOCH'
'in' acts as a link.
(Other definitions for antioch that I've seen before include "Ancient name for Antakya in Turkey" , "Ancient Syria capital" , "early Christian centre" , "Ancient Syrian city" , "Early centre of Christianity" .)