To improve writing speed and clarity for UPSC exams, candidates can adopt several effective strategies. First, regular practice through timed writing sessions can help enhance speed. Additionally, creating detailed outlines before writing can streamline thought processes, ensuring coherence and structure. Simplifying language and focusing on clarity will make writing more direct and impactful. Utilizing bullet points or headings can help organize information and maintain flow. Candidates should also analyze past papers to understand common question types and practice writing concise answers. Lastly, feedback from peers or mentors can provide insights into areas for improvement, fostering a better overall writing style.