Graphics Flickering In Turbo C++

[Yash8976]

Hi,
I Developed A Simple Snake Game In C++. The Functioning Of The Game Is Almost Perfect (Little Bugs Here And There), But The One Problem I Face Is The Constant Screen Tearing/Flickering Due To My Use Of The "cleardevice()" Function.
Is There Any Way To Get Past This Problem Without Page Flipping Or Double Buffering ?
I Have Seen The Snake Game Being Made With Neither The Flickering Problem Nor Double Buffering On Turbo C++.

My Play Function Is Below

void Snake::Play()
{
	char Arrow_Key, Dummy;
	Init_Points();
	Create_Rect(Start);
	Generate_Food();
	settextstyle(0, 0, 1);
	HighScore(IN);
	while(!Dead)
	{
		outtextxy( (getmaxx() / 2) - 55, (getmaxy() / 2) - 5, "High Score: ");
		outtextxy( (getmaxx() / 2) + 55, (getmaxy() / 2) - 5, HighScore_String);
		outtextxy( (getmaxx() / 2) - 55, (getmaxy() / 2) + 5, "     Score: ");
		outtextxy( (getmaxx() / 2) + 55, (getmaxy() / 2) + 5, Score_String);
		setfillstyle(1, RED);
		rectangle(Food_LX, Food_LY, Food_RX, Food_RY);
		floodfill(Food_LX + 5, Food_LY + 5, RED);
		Create_Rect(Start);
		if(kbhit())
		{
			Arrow_Key = getch();
			if(Arrow_Key != 0)
			{
				Arrow_Key = 0;
				New_Key = Old_Key;
			}
			else
			{
				New_Key = getch();
			}
		}
		if(Arrow_Key == 0)
		{
			Move(Start, New_Key);
			delay(50);
			Collision();
			if(Dead)
			{
				while(kbhit())
				{
					Dummy = getch();
					if(Dummy == 0)
					{
						Dummy = getch();
					}
				}
			}
			cleardevice();
		}
	}
}

Please Don't Suggest Solutions Like, "Leave Turbo C++".
If I Could I Would've, But I Cant So I Wont.

Any Help Is Appreciated.