Times Jumbo Crossword 1150

[crosswordnut]

44A Force arresting me after upsetting argument (7) P?E?C?E Help please

[fiction-factory]

polemic?

[fiction-factory]

Ignore that - it doesn't fit and isn't an exact anagram of POLICE ME

[dannyk13]

Anagram of police(force) & m

[fiction-factory]

Thanks dannyk- is M an accepted abbreviation for 'me' then?
I wonder if crosswordnut has given us the wrong pattern then

[dannyk13]

Dunno, but polemic seems to fit most of the clue.

[crosswordnut]

If polemic is correct, what then the following
49A Think one developed first bit of wisdom, becoming informed(2,3,4) I have IN THE KNOW as in an anagram of "think one" and w
56A Leave period shortened? That's the truth - I have GOSPEL as GO=leave and SPEL(L)

[Oldred]

pr em ise (i comes from impair)

[fiction-factory]

premise will be right then.

[dannyk13]

Premise makes more sense - me reversed in prise(force)

[crosswordnut]

Thank you all for your help. Premise it is as I had IMPACT instead of IMPAIR