Sentence:  Unlike Foxe, who avoided extensive discussion of the "Book of Common Prayer" (already a source of contention among the Marian exiles) and devoted long, debunking discussions to the Roman service ( "declaring . . . how and by whom this popish or rather apish mass became so <WSD>clampered</WSD> and patched together with so many divers and sundry additions"— 6.368 ), Hooker takes the very form of the English prayerbook as the structural matrix for his argument and welcomes the papal origin of many of its elements. 
Meaning of the word marked with <WSD> tags:  To join in an unsystematic or haphazard fashion.