One of many possibly plastered (4)

I believe the answer is:

lath

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But I can't explain it at all! Could you help me understand?

(Other definitions for lath that I've seen before include "Narrow thin strip of wood" , "Halt bearing strip of wood" , "Narrow strip of wood as used in trellis" , "Strip of wood used as a base for plastering" , "Thin wood strip supporting plaster" .)

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