Answer: cottas

AnswerCrossword Clue
COTTAS

Waist-long clerical vestments

COTTAS

Terra ...

COTTAS

Surplices.

COTTAS
Choir boys wear them.
COTTAS
Church surplices.
COTTASPriestly surplices
COTTASAltar boys' garb
COTTASChoristers' vestments
COTTASAltar boys' vestments