Hasty and superficial youth leader lost slide from slide rule (6)
I believe the answer is:
cursor
'slide from slide rule' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?
'hasty and superficial youth leader lost' is the wordplay.
'hasty and superficial' becomes 'cursory' (I've seen this before).
'youth leader' becomes 'y' (I've seen this in other clues).
'lost' is a deletion indicator.
'cursory' with 'y' removed is 'CURSOR'.
Can you help me to learn more?
(Other definitions for cursor that I've seen before include "Indicator on computer monitor" , "Indicator on computer screen marking position" , "blinking computer guide!" , "Feature of computer" , "Location indicator on a screen" .)