Readily available tinsel uncovered by a boy (2,6)
I believe the answer is:
in season
'readily available' is the definition.
'in season' can be an answer for 'available' (I've seen this before). I'm not sure about the 'readily' bit.
'tinsel uncovered by a boy' is the wordplay.
'uncovered' indicates the central letters.
'by' means one lot of letters go next to another.
'boy' becomes 'son' ('son' can be a synonym of 'boy'**).
The middle letters of 'tinsel' are 'inse'.
'inse'+'a'+'son'='IN SEASON'
Can you help me to learn more?
(Other definitions for in season that I've seen before include "Available during Yuletide?" , "(Of female mammal) ready to mate" , "ready to eat" , "Ripe; ready for use" , "mellow" .)