Ironed shirt finally sorted out and tested for size? (5,2)
I believe the answer is:
tried on
'tested for size?' is the definition.
'ironed shirt finally sorted out' is the wordplay.
'finally' says to take the final letters.
'sorted out' indicates anagramming the letters.
The last letter of 'shirt' is 't'.
'ironed'+'t'='ironedt'
'ironedt' anagrammed gives 'TRIED ON'.
'and' is the link.
(Other definitions for tried on that I've seen before include "Donned a garment to see if it suited" , "tested for suitability" , "Checked shirt perhaps" , "Tested the fit of (a garment)" .)