広くて

spacious, wide, broad

→ 広い
広 wide, spacious, large, broad + く Adverbial form + て Te-form (conjunctive form)
adjective Rare #36,662
spacious, wide, broad The て-form of 広い; it links this description to what follows.
JA: この公園は広くて静かです。
EN: This park is spacious and quiet.
Forms of 広い

あの店、すごく広くて目的の品を探すのが大変だった。

That store was so big that it was difficult to find what I was looking for.

部屋が広くて明るい。

The room is spacious and bright.

その部屋は広くて明るい。

That room is spacious and bright.

森は広くて深い

The forest is vast and deep.

— もののけ姫 (1997)

結構広くて結構きれいだ。

It's fairly spacious and pretty clean.