Bears (8)
'bears' is the definition.
('stomach' can be a synonym of 'bear')
This is the entire clue.
(Other definitions for stomachs that I've seen before include "Four of these for bulls" , "bibles, for example" , "Endures or tolerates - in abdomen?" , "They connect the oesophagus to the small intestine" , "Saclike organs of the body" .)
(Other definitions for supports that I've seen before include "Helps" , "Tees" , "Backs up, bears out" , "Holds up" , "Backs or approves of" .)