[Grammar] To be more clear

[jigneshbharati]

"We use adjectival and adverbial phrases constantly. Each one helps us to be more clear and specific in verbal and written communication. Before we dive into these phrases and how to use them correctly, we need to first review adjectives and adverbs."
please explain to me the use of ' to be more clear' and what part of speech does it belong to? How and when to use this type of grammatical structure ? Thanks in advance.

 

[Tdol]

It's an infinitive followed by a comparative.

 

[emsr2d2]

Please use a font size that is big enough for us oldies to read.

I have enlarged the font in post #1 for you (and for everyone else!)

 

[Tarheel]

Please capitalize the first word of every sentence.

 

[Rover_KE]

jigneshbharati, for the second time, please cite the source and author of any text you quote.