According to the reference information provided, the following are some clean and delicious restaurants in Tai 'an:

1. East Lake Branch of Tai 'an Hotel: Located in the east of East Lake Park, it is affordable, the room is clean and tidy, and the service attitude is good, providing all kinds of delicious food, including Tai 'an specialties.

2. Feilong Hotel: Located in the urban area of Tai 'an, it is a high-grade hotel with clean and tidy rooms and restaurants, providing all kinds of delicious food and banquet services.

3. Wen Zi Seafood: Located at the junction of Jinzhai Road and Honggang Road, it is a restaurant specializing in seafood, with clean and tidy environment, fresh and delicious seafood and relatively affordable price.

4. Red Lantern Hotel: Located next to Zhongbai, it is a special restaurant, offering all kinds of Taian delicacies and special dishes, with a clean and tidy environment and good taste.

5. Jinnuo Business Hotel, Xuanhe Business Hotel, etc. in Lingshan Street: These hotels are located in the urban area of Tai 'an, providing clean and tidy rooms and catering services at affordable prices, which are suitable for family gatherings and business banquets.

To sum up, there are many clean and delicious restaurants and hotels in Tai 'an city, so you can choose according to your own needs and budget.