Get over being displeased? (5)
I believe the answer is:
cross
I believe this clue is a triple definition!
'get' is the first definition.
(thesaurus)
'over' is the second definition.
(thesaurus)
'being displeased?' is the third definition.
(Other definitions for cross that I've seen before include "See 2" , "Traverse - displeased" , "Symbol of Christianity" , "X" , "Stand in the way of" .)