Time in play adjusted appropriately (5)
I believe the answer is:
aptly
'appropriately' is the definition.
(I've seen this before)
'time in play adjusted' is the wordplay.
'time' becomes 't'.
'in' indicates putting letters inside.
'adjusted' is an anagram indicator.
'play' anagrammed gives 'aply'.
't' put inside 'aply' is 'APTLY'.
(Other definitions for aptly that I've seen before include "In suitable fashion" , "Suitably" , "as is fitting" , "In a competent manner" , "Appropriately" .)