Being out of practice could make us try (5)
I believe the answer is:
rusty
'being out of practice' is the definition.
(synonyms)
'make us try' is the wordplay.
'make' is an anagram indicator.
'us'+'try'='ustry'
'ustry' is an anagram of 'RUSTY'.
'could' acts as a link.
(Other definitions for rusty that I've seen before include "Oxidised, corroded" , "(Of iron) affected by damp" , "a bit faded" , "Having a reddish-orange oxide coating" , "Impaired through lack of use" .)