Partners suppress anger with alarm (5)
I believe the answer is:
siren
'alarm' is the definition.
(siren is a kind of alarm)
'partners suppress anger' is the wordplay.
'partners' becomes 'sn' (South and North are partners in the game bridge).
'suppress' means one lot of letters goes inside another.
'anger' becomes 'ire' (synonyms).
'sn' going around 'ire' is 'SIREN'.
'with' is the link.
(Other definitions for siren that I've seen before include "Loud whistle or sea witch" , "Warning at sea" , "Loud warning signal" , "Dangerously fascinating woman" , "Warning signal generator" .)