Crossword Genius

Chemical I love sufficed, needing energy (6)

Ross

I believe the answer is:

iodide

'chemical' is the definition.
(thesaurus)

'i love sufficed needing energy' is the wordplay.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'sufficed' becomes 'did' ('do' can be a synonym of 'suffice').
'needing' says to put letters next to each other.
'energy' becomes 'e' (physics symbol as in E=mc2).
'i'+'o'+'did'+'e'='IODIDE'

(Another definition for iodide that I've seen is " Compound".)

I've seen this clue in The Telegraph.
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