This is the 1011th most frequent Japanese word.
うまい
Delicious; skillful; clever.
Here, 'うまい' is used as an adjective to describe the taste of the ramen, meaning 'delicious'.
このラーメンはうまい。
This ramen is delicious.
In this sentence, 'うまい' is used to express skillfulness in an activity (driving).
彼の運転は本当にうまい。
His driving is truly skillful.
Here, 'うまく', a derived adverbial form of 'うまい', indicates doing an action (summarizing) in a skillful manner.