Minute Cryptic

Our definition here is 'Pulls', and our answer will be another word for that.

This clue's indicators are 'back', 'after', and 'heart to heart exchange with'. The latter of these is a selection+swapping indicator - we'll need to swap part of some fodder with a part from another piece of fodder. 'back' is a reversal indicator (possibly aided by leveraging its connection with 'Pulls' which enhances that sense of reversing). And 'after' is simply suggesting an order of operations: apply one indicator and then apply the other afterwards.

This clue's fodder is 'sword' and 'beast'. We'll use these letters (or some of them) to construct our answer, as guided by the clue's indicator(s).