Bear to take upright position (5)
I believe the answer is:
stand
I believe this clue is a quadruple definition!!
'bear' is the first definition.
(I know that bear can be written as stand)
'to take' is the second definition.
(thesaurus)
'upright' is the third definition.
(thesaurus)
'position' is the fourth definition.
(I know that stand is a type of position)
(Other definitions for stand that I've seen before include "stay the same in position" , "Remain stationary" , "Sit here at a sports event" , "Base < put up with" , "Platform; attitude" .)