"Bosch" star Welliver (5)

I believe the answer is:

titus

(Other definitions for titus that I've seen before include "& 20 Mervyn Peake character" , "identifying Philemon's neighbour" , ". . . . . Andronicus, Shakespearean tragedy" , "NT book" , "Groan, possibly" .)

I've seen this clue in the LA Times.

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