apply oneself to

apply (oneself) to (something)

To put forth effort toward some task or goal. Honey, if you would just apply yourself to your schoolwork, you would get much better grades.
See also: apply
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

apply oneself to something

to work hard and diligently at something. You should apply yourself to your studies. She applied herself to her work and the time passed very rapidly.
See also: apply
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also: