Bottle as opposed to a tin, for a change (7)
I believe the answer is:
contain
'bottle' is the definition.
(thesaurus)
'opposed to a tin for a change' is the wordplay.
'opposed' becomes 'con' (I've seen this before).
'for a change' is an anagram indicator.
'a'+'tin'='atin'
'atin' anagrammed gives 'tain'.
'con'+'tain'='CONTAIN'
'as' is the link.
(Other definitions for contain that I've seen before include "Keep the lid on" , "Carry" , "Keep within limits or have within" , "keep within bounds" , "I cannot (anag) - hold back" .)