COLOSSUS NO 164 GIANT CRYPTIC

I NEED HELP WITH
8D DEVASTATED TRISTAN WRAPPED UP FIRST MILITARY BROADCAST
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ARGUING WITH DEB GIANT MISTAKE
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13A FLAMBEED SOME MEAT
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10D AN ALTERNATIVE TO A DAMAGED THRONE
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15D EXPERT NOT EXCITED IMMEDIATELY
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22A EVEN DEAN TO WRITE NAME ON FLAG
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19A LISTENERS CATCH FINAL BALL FROM LORDS
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23D BRING UP REST OF LETTERS
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50D DISCLOSE OUT OF ORDER ELEVATOR TO BE REMOVED
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53A REPRIMAND RICH GENT ABOUT THE SPANISH TRAINEE

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59D POLITICIAN CAUGHT RAW BEGINNER IN THE ACT MISBEHAVING AFTER PROTEST MARCH
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62A FANCY TEA RON BREWED
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57D CARL GRABBED ME A DREADFULLY CHEWY TYPE OF CONFECTIONERY
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63D REMOTE POSSIBILITY IT CAME DOWN IN THE LAST SHOWER
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69A HAVING GOOD INTENTIONS WE WILL TAKE MESSAGE ???L?????N?

54D DOCUMENT HAS A LETTERHEAD THATS OFFICIAL
F?R??? IS IT FORMAL OR FORMAT
THANKS MAIZEY