Standard cavalry weapon in a manner of speaking (8)

I believe the answer is:

parlance

'in a manner of speaking' is the definition.
(I've seen this before)

'standard cavalry weapon' is the wordplay.
'standard' becomes 'par' (I've seen this before).
'cavalry weapon' becomes 'lance' (I've seen this before).
'par'+'lance'='PARLANCE'

(Other definitions for parlance that I've seen before include "Way of speaking" , "Language" , "Idiom" , "Manner of speaking peculiar to a specific group" , "Conversation" .)

I've seen this clue in The Telegraph.

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