You could just randallise it and call it a heavy-handed APA. Put enough hops in, their shouldn't be many tastebuds left after the first sip or two to detedct a grainy flavour.
FWIW (and bearing in mind I don't have my notes with me so volumes are approx based on my normal routine), I made an all JW Ale APA with a detectable graininess to it; 5.5kg malt, mashed with ~12L at 66C, fly sparged with ~14L @ 70C, hopped with Amarillo to ~27IBU for 60 min boil, fermented with 1056 from 1.055 down to 1.010 IIRC. Could have done with more hops.
FWIW (and bearing in mind I don't have my notes with me so volumes are approx based on my normal routine), I made an all JW Ale APA with a detectable graininess to it; 5.5kg malt, mashed with ~12L at 66C, fly sparged with ~14L @ 70C, hopped with Amarillo to ~27IBU for 60 min boil, fermented with 1056 from 1.055 down to 1.010 IIRC. Could have done with more hops.