German you sent west pocketing pound for tip (5)
I believe the answer is:
upend
'for tip' is the definition.
(I've seen this before)
'german you sent west pocketing pound' is the wordplay.
'german' becomes 'd' (abbreviation for Deutschland ie Germany).
'you' becomes 'u' (commonly used in online communication).
'sent west' shows that the letters should be reversed in order (letters written left to right or 'east to west').
'pocketing' means one lot of letters goes inside another (pocket can mean to steal or take possession of).
'pound' becomes 'pen' (both can mean an animal enclosure).
'd'+'u'='du'
'du' backwards is 'ud'.
'ud' going around 'pen' is 'UPEND'.
(Other definitions for upend that I've seen before include "Alter greatly" , "Affect drastically" , "Turn on its head" , "Set upside down" , "Trip" .)