English politician secures bottles maybe (7)
I believe the answer is:
empties
'bottles maybe' is the definition.
(empty bottles)
'english politician secures' is the wordplay.
'english' becomes 'e' (abbreviation).
'politician' becomes 'MP' (Member of Parliament).
'secures' becomes 'ties' (tying is a kind of securing).
'e'+'mp'+'ties'='EMPTIES'
(Other definitions for empties that I've seen before include "Vacates" , "Beer bottles after contents have been imbibed" , "Dead men" , "Returned bottles" , "they've nothing to offer" .)