Way inclement weather produces stress (6)
I believe the answer is:
strain
'stress' is the definition.
('strain' can be a synonym of 'stress')
'way inclement weather' is the wordplay.
'way' becomes 'st'.
'inclement weather' becomes 'rain'.
'st'+'rain'='STRAIN'
'produces' acts as a link.
(Other definitions for strain that I've seen before include "Pressure - filter" , "Blood" , "Family - stress - air - force" , "Injure (a muscle); distinct breed" , "Pass through a sieve" .)