Send lie about oil supplier (7)

I believe the answer is:

linseed

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

'oil supplier' is the definition.
'linseed' can be an answer for 'oil' (I've seen this before). I am not sure about the 'supplier' bit.

'send lie about' is the wordplay.
'about' indicates an anagram.
'send'+'lie'='sendlie'
'sendlie' with letters rearranged gives 'LINSEED'.

Can you help me to learn more?

(Other definitions for linseed that I've seen before include "Treatment for bats" , "Oil produced from flax" , "Part of flax used as oil" , "Flax product, a source of oil" , "Type of oil" .)

I've seen this clue in The Mirror.

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.