Oh well, seems not only do I have to improve my Latin but also my knowledge of lyric poets!
More Araucaria here.
Eminent lady's man with head girl entertained by King Cyrus (3,10)
I have HER EXCELLENCE or EXCELLENCY but the parsing defeats me.
It looks like HER EXCELLENCY. Definition is Eminent lady. HE is man, REX is king, CY is Cyrus, entertaining C (caput, Latin for head) + ELLEN (girl ‘s nane)
A further Araucaria then.
It changed Leigh Hunt's ode and Bronson's tee. (5,6)
The answer I have is ROSES BONNET from the anagram, but I don't know the particular ode referred to?