Crucial blow for typist's depression? (9)
I believe the answer is:
keystroke
'typist's depression?' is the definition.
The definition suggests a singular noun which matches the answer.
'crucial blow' is the wordplay.
'crucial' becomes 'key' (I've seen this before).
'blow' becomes 'stroke' (I've seen this before).
'key'+'stroke'='KEYSTROKE'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for keystroke that I've seen before include "Depression of a typewriter or computer board" , "Single operation on a typewriter" , "One character typed" , "Single depression of a character on a computer terminal" , "Single motion during typing" .)