to keep a tight hold on sy
to be slack about doing sg
to be slack in doing sg
to take sg with both hands
to throw money away by the handful
to throw money away in handfuls
to keep a slack hand on sg
to keep a slack rein on sg
to keep a slack hand on sg
to keep a slack rein on sg
to deal gently with sy
to handle sy with kid gloves
to pull one's punches
to throw one's arms about
to oppose sg tooth and nail