Skilled workman arranging courses in building? (10)

I believe the answer is:

bricklayer

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'skilled workman' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's an association between them I don't understand?

I don't understand how the remainder of the clue works.

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(Other definitions for bricklayer that I've seen before include "Construction worker" , "Builder of 36 ac" , "worker in bonds" , "Labourer" , "Wall builder" .)

I've seen this clue in The Times.

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