Constructed raised bath to contain the Italian (5)
I believe the answer is:
built
'constructed' is the definition.
('build' can be a synonym of 'construct')
'raised bath to contain the italian' is the wordplay.
'raised' says the letters should be written in reverse.
'bath' becomes 'tub' ('tub' can be a synonym of 'bath').
'to contain' indicates putting letters inside.
'the italian' becomes 'il' (the in Italian).
'tub' backwards is 'but'.
'but' enclosing 'il' is 'BUILT'.
(Other definitions for built that I've seen before include "put together" , "Raised" , "assembled" , "Erected" , "Constructed" .)