Shanghainese, e.g. Crossword Clue

 The answer to the crossword clue "Shanghainese, e.g." can be CHINESE.

This is because the Shanghainese language is a dialect of Chinese. The clue is a bit of a pun, as the word "Chinese" can refer to both the people of China and the language spoken in China.

Here are some other possible answers to the clue:

Chinese

Mandarin

Cantonese

Wu

Min

Hakka

The specific answer that is correct will depend on the context of the crossword puzzle.