Sprinkled on the bottom of the nest the wren built (6)
I believe the answer is:
strewn
'sprinkled' is the definition.
(I've seen this in another clue)
'the bottom of the nest the wren built' is the wordplay.
'the bottom of the nest' becomes 's' (I can't justify this - if you can you should give a lot more credence to this answer).
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'built' indicates anagramming the letters.
'wren' is an anagram of 'rewn'.
's'+'t'+'rewn'='STREWN'
'on' acts as a link.
Can you help me to learn more?
(Other definitions for strewn that I've seen before include "Scattered loosely" , "Scatttered about untidily" , "Scattered over an area" , "Distributed" , "Cast about" .)