Bear being bowled? Disaster (5)
I believe the answer is:
bruin
'bear' is the definition.
(bruin is a kind of bear)
'bowled? disaster' is the wordplay.
'bowled?' becomes 'b' (cricket abbreviation).
'disaster' becomes 'ruin' (I've seen this before).
'b'+'ruin'='BRUIN'
'being' is the link.
(Other definitions for bruin that I've seen before include "Archetypal name for a bear" , "Conventional name for a bear" .)