Swap ends in very long cricket matches, at intervals (8)
I believe the answer is:
episodic
'long cricket matches at intervals' is the definition.
I can't judge whether this definition defines the answer.
'swap ends in very' is the wordplay.
I cannot really see how this works, but
'very' could be 'so' (both can mean 'extremely') and 'so' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for episodic that I've seen before include "Serialised" , "Occurring irregularly or in instalments" , "Intermittent" , "Occurring at irregular intervals" , "Presented in sections" .)