5 down
Returning
uncooked
iron-enriched
biscuit
(5)
Returning uncooked iron-enriched biscuit (5)
hints
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checks
0
hints
The definition is at the end of the clue.
How the clue works
Look at biscuit at the end — that's what you're after. Take RAW (uncooked), reverse it ("Returning") to get WAR, then enrich it with FE (the chemical symbol for iron) sitting inside, giving you WA-FE-R.