Eh? All trains to Enfield go via Hackney downs..
Via Clapton dear boy, via Clapton.
I would have to check but M-F I think one late night HFE train runs via Clapton and Seven Sisters.
Greater Anglia timetable for Chingford would say, see footnote for the only train in there that doesn't serve Chingford, I think that may be it
PSUL only has the single train I mentioned, but I expect they don't guarantee 100% accuracy...