sunday post cryptic

[weaver]

9a, the acre's replaced by metric units [8] t???a?e?

10a, paper covering new union members [8] ?o?f?b?

5d, claim acting out when adjusting to temperature [13] a?????a?i?i?g

[Wharton]

9a hectares (anagram the acre's)

[Lie-in King]

9a Hectares - anag 'the acres'
10a Confetti - 'union' as wedding
5d Acclimatising - anag 'claim (is?) acting'

[shoota]

5d acclimatising

[Sam1960]

10a confabs ?

[Wharton]

5d acclimatising

[weaver]

thanks everyone :-}