Crossword Genius

Realise, laconic, and deploy hot air (6,3)

Ross

I believe the answer is:

tumble dry

I'm a little stuck... Click here to teach me more about this clue!

'deploy hot air' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'realise laconic' is the wordplay.
'realise' becomes 'tumble' (I am not sure about this - if you are sure you should believe this answer much more).
'laconic' becomes 'dry'.
'tumble'+'dry'='TUMBLE-DRY'

'and' is the link.

Can you help me to learn more?

(Other definitions for tumble dry that I've seen before include "last stage of laundering" , "spin, with hot air" .)

I've seen this clue in The Daily Express.
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