One leaving coaches to consider electrical device (11)

I believe the answer is:

transponder

I'm a little stuck... Click here to teach me more about this clue!

'electrical device' is the definition.
(transponder is a kind of electrical device)

'one leaving coaches to consider' is the wordplay.
'one' becomes 'i' (Roman numeral).
'leaving' suggests deleting specific letters.
'coaches' becomes 'trains' ('train' can be a synonym of 'coach').
'to consider' becomes 'ponder' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'trains' with 'i' removed is 'trans'.
'trans'+'ponder'='TRANSPONDER'

Can you help me to learn more?

(Other definitions for transponder that I've seen before include "Device carried by aircraft" , "Aircraft's tracking device" , "Aircraft communication device" .)

I've seen this clue in The Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.