Prepared hide for tragic king after the invasion (7)
I believe the answer is:
leather
'prepared hide' is the definition.
'leather' can be an answer for 'hide' (an animal hide). I am unsure of the 'prepared' bit.
'tragic king after the invasion' is the wordplay.
I cannot really see how this works, but
'king' could be 'er' (abbreviation for Edward Rex, various English kings) and 'er' is located in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
The remaining letters 'leah' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'for' acts as a link.
Can you help me to learn more?
(Other definitions for leather that I've seen before include "kid, say" , "Whip" , "Tanned animal skin" , "Flog; hide" , "Processed animal skin" .)