一清早

early in the morning

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

Qing (Wade-Giles: Ch'ing) dynasty of imperial China (1644-1911) / surname Qing

clear / distinct / quiet / just and honest / pure / to settle or clear up / to clean up or purge

(of water etc) clear; clean / quiet; still / pure; uncorrupted / clear; distinct / to clear; to settle (accounts)

first thing in the morning / at daybreak

early / morning / Good morning! / long ago / prematurely