Call attention to, when delivering (6)

I believe the answer is:

stress

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'call attention to' is the definition.
(I've seen this in another clue)

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

Can you help me to learn more?

(Other definitions for stress that I've seen before include "suffering" , "Physical or mental over-exertion" , "Emphasis: result often of being under pressure" , "Underline - tension" , "result of being overworked" .)

I've seen this clue in the Evening Standard.

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