1 Next after him went Doubt, who was clad
Next > Immediately
2 In a discoloured coat of strange disguise,
discoloured > varicoloured disguise > {New or strange, often ostentatious, fashion}
3 That at his back a broad capuccio had,
capuccio > hood (Italian word, used specifically of the cloaks of capuchin monks; named after Capuccio in Florio)
4 And sleeves dependent Albanese-wise:
dependent > hanging down Albanese-wise > (?In the fashion of the Albanians. Hamilton (1980) suggests a possible reference to the garment called an alb, a white tunic reaching to the feet. Roche (1978) interprets "Albanese" as "Scottish" (cf. 210.29:7). The term is puzzling in any case)
5 He looked askew with his mistrustful eyes,
askew > askance, obliquely