Medieval lasses showing some panache in making news (7)

'medieval lasses' is the definition.
'wenches' can be an answer for 'lasses' (I've seen this in another clue). I am unsure of the 'medieval' bit.

'panache in making news' is the wordplay.
'panache' becomes 'che' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'in' is an insertion indicator.
'making' indicates an anagram.
'news' is an anagram of 'wens'.
'che' placed inside 'wens' is 'WENCHES'.

'showing some' acts as a link.

Can you help me to learn more?