Crossword Genius

Route maps confused pest controller (9)

Ross

I believe the answer is:

mousetrap

'pest controller' is the definition.
(mice are pests)

'route maps confused' is the wordplay.
'confused' is an anagram indicator.
'route'+'maps'='routemaps'
'routemaps' is an anagram of 'MOUSETRAP'.

(Other definitions for mousetrap that I've seen before include "Boring hard cheese (informal)" , "Poor cheese (colloq.)" , "A rodent control; (The) long-running play" , "Snare for vermin" , "pest control device" .)

I've seen this clue in The Independent.
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