Mischievous child lets the guys in with the tools (10)

'the tools' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Perhaps there's an association between them I don't understand?

'mischievous child lets the guys in' is the wordplay.
'mischievous child' becomes 'imp' (imp can mean a misbehaving child).
'the guys' becomes 'men' (guy can mean a man).
'in' indicates putting letters inside.
'lets' placed around 'men' is 'lements'.
'imp'+'lements'='IMPLEMENTS'

'with' acts as a link.

Can you help me to learn more?