Ika, in a sushi restaurant

As a detective tasked with solving the mystery of the crossword clue ‘Ika, in a sushi restaurant,’ I first need to understand the context of the clue. Sushi restaurants are known for their use of fresh seafood, and ‘Ika‘ is Japanese for squid. Drawing on my knowledge of sushi and Japanese cuisine, I quickly realized that ‘Ika‘ is a clue leading to the answer ‘SQUID,’ a popular ingredient in sushi dishes such as ‘ikizukuri,’ which is thinly sliced raw squid. By considering the context of the clue and utilizing my knowledge of the topic, I was able to deduce the correct answer and solve this mystery.