What's That Flat?

Change of heart

Two words or phrases are each divided into three pieces; then their middle pieces are switched to form two others. Example: share, colt sole, chart . (This would appear in the solution list as “s(har)e, c(ol)t.”) Another example: wine steward, FDR windward, fester (“win(e ste)ward, F(D)R”).

A change of heart is similar to a DOUBLE-CROSS, except that the pieces that are switched come from the middles of the ONE and TWO rather than the ends. Note that as in a double-cross, ONE and THREE have the same beginnings, as do TWO and FOUR. (See also the HEART TRANSPLANT.)

The change of heart was invented by Lunch Boy and named by Xemu.