ETYMOLOGY
from cluster in sense of lump, clumsy mass + fist
EXAMPLE
“…Saturday Night passed with much Perplexity to the Monks, who were at their Wits Ends, and Lives too (they could not hope better things) about the Charter, which was no where extant but in the Noddles of these Cluster-fists. But Day and Comfort broke out together upon them; suddenly this Overflow of Pride, and Arrogancy abated, their Loftiness fell, and their Bristles were somewhat laid…”
From: The Works of Mr. John Cleveland
By John Cleveland, 1687
The Rustick Rampant, or Rural Anarchy Affronting Monarchy, a1658
Lexicophilia 