Yellow Flowering Plant Often Used for Cooking Oil
Puzzle 9 of Auction House Hard Pack
Question is: Yellow Flowering Plant Often Used for Cooking Oil
and the answer is: CANOLA
Word Meaning:
CANOLA — Any of a number of cultivars of rapeseed (Brassica napus) and closely related field mustard (Brassica rapa), which have a lower erucic acid and glucosinolate content than traditional rapeseed.
Definitions from Wiktionary.