Recover after a heartbreak . . . or Step 2 for solving a jigsaw puzzle? (4,2,3,6)
I believe the answer is:
pick up the pieces
(Other definitions for pick up the pieces that I've seen before include "recover from disaster" , "redeem a bad situation?" , "get back to normality" , "Retrieve spilled jigsaw" , "What chess players will do" .)