Clue: Without hesitation, fate has sealed ex-president as initiator of hatred (4,1,4)
Answer: LIKE A SHOT
Explanation: Definition: Without hesitation
An envelope ('has sealed') of IKE ('ex-president') plus 'as' plus H ('initiator of **H**atred') *in LOT ('fate')*. There is still over a day to go before the 'ex' …