Killing a text display

[coral fox]

so i made it that when i place a spawner a text display gets spawned and it works but when removing the spawner the text display does not get killed

    if 1 of player's tool is {tier1spawner}:
        add event-block's location to {spawner::%player's uuid%::10::*}
        set {spawner::%player's uuid%} to true
        send "{@prefix} You placed a &aTier 1 Spawner&f." to player
        play sound "entity.turtle.lay_egg" to player
        spawn text display above event-block:
            set {_tier1spawner} to text display
            set display text of {_tier1spawner} to "&aTier 1 Spawner"
            set display billboard of {_tier1spawner} to fixed
            set display text background color of {_tier1spawner} to bukkitColor(0,0,0,0)
            set display text opacity of {_tier1spawner} to 0
            set display text shadowed of {_tier1spawner} to true
            set display scale of {_tier1spawner} to vector(0.6,0.6,0.6)```

but killing the text display does not work ```kill {_tier1spawner}```

```on left click:
    if {spawner::%player's uuid%::10::*} contains event-block's location:
        remove event-block's location from {spawner::%player's uuid%::10::*}
        play sound "entity.turtle.lay_egg" to player
        set event-block to air
        give player {tier1spawner}
        kill {_tier1spawner}
        if size of {spawner::%player's uuid%::10::*} <= 0:
            set {spawner::%player's uuid%} to false
        send "{@prefix} You removed a &aTier 1 Spawner&f." to player```

[waxen frost]

AʟᴡᴀʏᴢPʟᴀʏᴢ suggests that you read Sovde's Global vs Local Variable Tutorial @coral fox

[twilit hill]

read this

(remove the _ from the variable)

[coral fox]

From every variable in the on place event and on left click?

[twilit hill]

yup