Engineer learnt new lighting technology (7)

I believe the answer is:

lantern

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

'lighting technology' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

'engineer learnt new' is the wordplay.
'engineer' is an anagram indicator.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'learnt' with letters rearranged gives 'lanter'.
'lanter'+'n'='LANTERN'

Can you help me to learn more?

(Other definitions for lantern that I've seen before include "Enclosed lamp" , "Transparent case for holding a light" , "Type of lamp" , "Lamp with protective transparent casing" , "Encased light" .)

I've seen this clue in The Times.

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.