Crossword Genius

Language detailing a direction-less quantity (5)

Ross

I believe the answer is:

scala

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'language detailing a' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'direction-less quantity' is the wordplay.
'direction' becomes 's' (S is an example).
'less' becomes 'cal' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'quantity' becomes 'a' (A is an example).
's'+'cal'+'a'='SCALA'

Can you help me to learn more?

(Other definitions for scala that I've seen before include "La --, Milan theatre" , "La . . . . . is a famous Opera House in Milan" .)

I've seen this clue in The Hindu.
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