iron out

iron out  {v.},  {informal}

Обсудить и достичь соглашения (в разногласиях); найти решение (проблемы); убрать (препятствие).

The company and its workers ironed out their differences over hours and pay.

The House and Senate ironed out the differences between their two different tax bills.

Ср.: MAKE UP (5).