leave it all on the field

cede the field

To withdraw from any confrontational or potentially confrontational situation; to avoid participating in a competition or contest.

center field

A central role in some activity that requires speed.

debris field

Any area, non-dependent of locale, space, or contour, that contains the debris of wreckage, impact, sinking, or other material that once constituted a complete object. Debris fields can be found at the site of air crashes, water vessel sinking, explosions of buildings, collapses, and other events that render a whole entity into components, pieces, or other non-whole items.

eat and leave no crumbs

Synonym of eat (“to be very good at something; to rule; to rock”).

field day

A great time or a great deal to do; a period of bustling activity.

French leave

A departure taken quietly and unnoticed, without asking for permission or informing anyone.

leave a sour taste in one's mouth

To give one an unpleasant feeling or memory.

leave at the door

To dispense with something for now; to forget about it situationally, or omit or discard it in a given place or instance.