Try introducing skinned badger hats (8)
I believe the answer is:
Here is my best explanation:
'hats' is the definition.
(I've seen this before)
'try introducing skinned badger' is the subsidiary indication.
'try' becomes 'hear' ('hear' can be a synonym of 'try'**).
'introducing' indicates putting letters inside (some letters introduced or inserted into others).
'skinned' says to take the centre.
The centre of 'badger' is 'adge'.
'hear' enclosing 'adge' is 'headgear'.
(Other definitions for headgear that I've seen before include "bowler perhaps", "Aged hare? (anagram)", "Perhaps a hat", "Trilby e.g", "Mortarboard < , especially", "Hats, helmets etc.", "mortarboard?", "cap, say", "Hats, bonnets, caps etc" and "Nightcap, perhaps".)