Put on clothing for international singer from Canada (4)
I believe the answer is:
dion
'singer from canada' is the definition.
'dion' can be an answer for 'singer' (I've seen this before). I'm unsure of the 'from canada' bit.
'put on clothing for international' is the wordplay.
'put on' becomes 'don' (synonyms).
'clothing for' indicates putting letters inside.
'international' becomes 'i' (abbreviation eg in IMF).
'don' going around 'i' is 'DION'.
Can you help me to learn more?
(Another definition for dion that I've seen is " Singer".)