It is most definitely NOT a Raleigh, because the seat stay caps do not come close enough to the top tube to qualify. The seat stay caps terminate in the middle of the seat tube, and this is something that Raleigh/Carlton never built.
I own 25 Carlton/Raleigh bicycles, all with 531 tubing (most are rescues), spanning from 1950-1978, and although this is a slightly later early 1980's frameset, the seatstay cap treatment is not something that Raleigh (or Carlton) would ship.
Raleigh started using Gipiemme dropouts in the early 1980's, but when they started, the bikes had scalloped seatstay caps, not flat ones like this.
If it _were_ a raleigh, evidence would come from having 3 telltale holes in the head tube for the raleigh heron badge. You may have to shine a light down the headtube to see the perforations on the inside of the tube, if they had been filled in a previous repaint.
If it _were_ a raleigh, the serial number on the bottom bracket would be of the form WxNNNNN signifying "made in worksop", "fortnight" = x, "frame number" = NNNNN. Also the stamps for this bike's serial number are heavier than worksop letters/numbers.
Best wishes and good luck!
- Don Gillies
Palo Alto, CA, USA
Re:
https://bulgier.net/pics/bike/Catalogs/Raleigh80s_Pro_frames/3_picture.jpg - ilkeston team pro, note seat stay treatment.
https://bulgier.net/pics/bike/Catalogs/Raleigh84/ral84_07.jpg - 1984 bike, note seat stays, indented / scalloped.
https://bulgier.net/pics/bike/Catalogs/Raleigh83/ral83_04.jpg - 1983 bike, flat seat stays but cover much more the seat tube.
https://bulgier.net/pics/bike/Catalogs/Raleigh82/6_Clubman_and_Rapide.jpg - 1982 frames, scalloped seatstay caps.