Compass showing north in storm (5)
I believe the answer is:
range
'compass' is the definition.
(I've seen this before)
'north in storm' is the wordplay.
'north' becomes 'n' ('N' can be a synonym of 'north').
'in' means one lot of letters goes inside another.
'storm' becomes 'rage' ('rage' can be a synonym of 'storm').
'n' put inside 'rage' is 'RANGE'.
'showing' is the link.
(Other definitions for range that I've seen before include "Wander freely" , "Limit of effectiveness" , "Tract of grassy land for livestock" , "Chain of mountains" , "Mountain chain" .)