Crossword Genius

One gets depressed when entering capital (5,3)

Ross

I believe the answer is:

shift key

This might be a double definition.

'one gets depressed' is the first definition.
(keyboard button which is pressed down)

'entering capital' is the second definition.
The definition suggests a singular noun which matches the answer. I also know that 'capital' relates to this answer.

'when' is the link.

(Other definitions for shift key that I've seen before include "It's pressed while making THIS" , "Use it to move from lower-case to upper-case letters" , "means of capital production" , "Press it ot move to upper-case letters" , "it produces capital" .)

I've seen this clue in The Times.
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