Hi Suesan.
A couple of questions for you ...
Is there any reason that the same word ('den') cannot be used for both clues?
If there is a good reason then ... is the middle word in both clues 'mark' or should the 'Ounce - Mark - war' have had a different middle word? The reason I ask this is because the word 'ren' (= old 'run') could be used to make 'renounce' and 'warren'.
JimC