Be exhausted, so dismissed? (3,3)
I believe the answer is:
run out
'dismissed?' is the definition.
(cricket term)
'be exhausted' is the wordplay.
'be' becomes 'run' (running is a kind of being).
'exhausted' becomes 'out' (out can mean empty or exhausted).
'run'+'out'='RUN-OUT'
'so' is the link.
(Other definitions for run out that I've seen before include "Dismissed by a fielder" , "Dismissed while attempting to sprint between the wickets" , "Exhaust the supply of" , "Dismiss (a batsman)" , "Expire" .)