Next to tubes, I deposit bottles (6)
I believe the answer is:
beside
'next to' is the definition.
(thesaurus)
'tubes i deposit bottles' is the wordplay.
'bottles' says the answer is hidden in the clue (bottling is a kind of containing).
'BESIDE' is hidden within 'tubes i deposit'.
(Other definitions for beside that I've seen before include "Very near to" , "- - the point" , "Neighbours" , "Next door to" , "Next to - compared with" .)