The weather worried Tim and Alec (7)
I believe the answer is:
climate
'the weather' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for climate that I've seen before include "Atmosphere" , "Prevailing state" , "Prevailing trend" , "Cite Mal (anag.)" , "Came lit (anag.)" .)