Guardian Bank Holiday Special

[rooklynb]

AaaH! Just as I was going to throw away the Maskerade puzzle, I realise there is one other clue unfinished.

39a Tory Lord, wildly errant having sets of 12...

I have *R*F*A*N*

Help will be much appreciated and then I shall properly enjoy the Bank Holiday.

Thanks

[Quimera]

It's an anagram of errant with a 3 letter string in the middle, letters 3,4,5. Def is Tory Lord.

[hollismum]

trefgarne

[rooklynb]

Thank you, hollismum. I have never heard of him; I must stop doing crosswords and get out more!