Hate having reactive metal when short of sulphur (5)

I believe the answer is:

odium

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

'hate' is the definition.
(I know that odium is a type of hate)

'metal when short of sulphur' is the wordplay.
'metal' becomes 'sodium' (sodium is a kind of metal).
'when short of' suggests deleting specific letters.
'sulphur' becomes 'S' (synonyms).
'sodium' with 's' removed is 'ODIUM'.

'having reactive' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for odium that I've seen before include "Disfavour" , "Great hatred." , "Offensiveness" , "Widespread hatred or abhorrence (5)" , "Wide-spread disgust towards a person or action" .)

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.