Tailor

1. A person who makes and fits clothing, usually men’s suits.

2. The process of fitting clothing to the individual wearer.

3. The process of constructing clothing, usually jackets and pants, using linings, underlinings, interfacings, and padding.

 
 
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While not strictly tailoring, which usually means more constructed clothing, it is extremely important to fit vestments to the wearer.   Albs, chasubles, and stoles that are too long pose a tripping hazard.