Lid, type used in an indifferent way (7)

I believe the answer is:

tepidly

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

'in an indifferent way' is the definition.
I can't tell whether this definition defines the answer.

'lid type used' is the wordplay.
'used' is an anagram indicator.
'lid'+'type'='lidtype'
'lidtype' anagrammed gives 'TEPIDLY'.

Can you help me to learn more?

(Other definitions for tepidly that I've seen before include "Without enthusiasm" , "In a lukewarm manner" , "without passion" .)

I've seen this clue in The Daily Express.

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.