Australia gets most of support in summer? (6)
I believe the answer is:
abacus
'summer?' is the definition.
(I've seen this before)
'australia gets most of support' is the wordplay.
'australia' becomes 'Aus' (abbreviation).
'gets' indicates putting letters inside (gets can mean captures or absorbs).
'most of' means to remove the last letter.
'support' becomes 'back' (to back is to support or endorse).
'back' with its last letter taken off is 'bac'.
'aus' going around 'bac' is 'ABACUS'.
'in' is the link.
(Other definitions for abacus that I've seen before include "Old calculator" , "As a cub (anag)" , "Very early calculator" , "Counting-bead device" , "Early counting-frame" .)