Crossword Genius

No laird worked twice, say (7)

Ross

I believe the answer is:

ordinal

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'twice say' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

'no laird worked' is the wordplay.
'worked' is an anagram indicator.
'no'+'laird'='nolaird'
'nolaird' is an anagram of 'ORDINAL'.

Can you help me to learn more?

(Other definitions for ordinal that I've seen before include "Roman Catholic service book" , "Numerals such as first and second" , "Denoting a numerical order in a series" , "It shows your place" , "Number such as first or second" .)

I've seen this clue in The Mirror.
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