Cite the scanned version of the original dicionary like this:
Bosworth, Joseph. "ealu-scóp." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth. Ed. Thomas Northcote Toller. Oxford: Clarendon Press, 1898. 231.
.Substitute:ealu-scop, es; m. One who recites poetry where there is drinking :-- Wé lǽrað þ̵ ǽnig preóst ne beó ealuscop ne on ǽnige wísan glíwige mid him sylfum oþ[þe mid] óðrum mannum, Ll. Th. ii. 256, 15. Gif preóst oferdruncem lufige, oþþe glíman oþþe ealascop wurðe, 296, 12. Cf. the section, 'Ut sacerdos ebrietatem et tabernas fugiat, et inordinata etiam convivia,' 410, 13.