Take the wrong seat on the left (5)
I believe the answer is:
steal
'take' is the definition.
(stealing is a kind of taking)
'the wrong seat on the left' is the wordplay.
'the wrong' is an anagram indicator.
'on' means one lot of letters go next to another.
'the left' becomes 'l' (common abbreviation).
'seat' is an anagram of 'stea'.
'stea'+'l'='STEAL'
(Other definitions for steal that I've seen before include "Filch" , "Purloin" , "pirate" , "Shoplift" , "Take without permission" .)