It's not every season that brings some new interest (6)
I believe the answer is:
winter
'it's not every season that' is the definition.
I can't judge whether this definition defines the answer.
'some new interest' is the wordplay.
'some' indicates the answer is hidden within the clue (some parts of the word are used).
'WINTER' can be found hidden inside 'new interest'.
'brings' acts as a link.
Can you help me to learn more?
(Other definitions for winter that I've seen before include "period of discontent?" , "Coldest season" , "'Now is the . . . . . . of our discontent' (Richard III)" , "period of freeze?" , "Time for mittens and scarves?" .)