Stop and state temperature (5)
I believe the answer is:
avert
'stop' is the definition.
(I've seen this before)
'state temperature' is the wordplay.
'state' becomes 'aver' (I've seen this before).
'temperature' becomes 't' (abbreviation).
'aver'+'t'='AVERT'
'and' is the link.
(Other definitions for avert that I've seen before include "Ward off (bad event)" , "Stave off" , "Prevent from happening" , "Ward off, deflect" , "Obviate" .)