Strauss of jeans (4)
I believe the answer is:
levi
'strauss of jeans' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for levi that I've seen before include "Jacob's third son" , "Jewish priestly tribe" , "Jacob's son (OT)" , "The Strauss who first patented blue jeans" , "Tribe of Israel" .)