it's challenging to pinpoint a single "cleanest" WordPress theme because the concept of cleanliness and elegance can vary based on personal preferences and website needs. However, I can suggest some popular WordPress themes known for their simplicity, cleanliness, and elegance:
Astra: Astra is a lightweight and customizable theme with a focus on performance. It offers a clean design and comes with several pre-designed templates to help you get started quickly.
GeneratePress: GeneratePress is another lightweight and fast-loading theme known for its simplicity and flexibility. It is a great choice for those seeking a clean and minimalistic design.
OceanWP: OceanWP is a highly customizable and responsive theme that provides a clean and professional look. It offers a range of built-in demos to suit different website types.
Neve: Neve is a modern and fast-loading theme that features a clean and elegant design. It works well for various types of websites and offers seamless integration with popular page builders.
Hestia: Hestia is a one-page, stylish theme with a clean and contemporary design. It is suitable for small businesses, startups, and portfolios.
Essence Pro: Essence Pro is a Genesis child theme designed for bloggers and content-focused websites. It has a clean and minimalist layout that highlights your content.
Soledad: Soledad is a multi-concept blog and magazine theme with over 6,000 homepage variations. Despite its versatility, it can still maintain an elegant and clean look.
Remember that "clean" and "elegant" themes can be enhanced further through proper customization and content presentation. When choosing a theme, consider your website's purpose, the features you require, and how well it aligns with your branding and content strategy. Additionally, ensure the theme is regularly updated and well-supported by the developers to guarantee ongoing compatibility and security. Always review user ratings, reviews, and demos to get a better sense of how the theme functions in real-world scenarios.