Dog in show with energy chewed lead (8)
I believe the answer is:
airedale
'dog' is the definition.
(Airedale is an example)
'show with energy chewed lead' is the wordplay.
'show' becomes 'air' (both can mean broadcast).
'with' indicates putting letters inside.
'energy' becomes 'e' (physics symbol as in E=mci).
'chewed' indicates an anagram.
'lead' anagrammed gives 'dale'.
'e' placed inside 'dale' is 'edale'.
'air'+'edale'='AIREDALE'
'in' is the link.
(Other definitions for airedale that I've seen before include "Large breed of terrier" , "part of Yorkshire" , "Dog from Yorkshire" , "Mutt" , "Thematic type [DOG]" .)