What's picked up in disorderly creches? (7)
I believe the answer is:
screech
'what's picked up' is the definition.
I can't tell whether this defines the answer.
'disorderly creches?' is the wordplay.
'disorderly' indicates an anagram.
'creches' is an anagram of 'SCREECH'.
'in' acts as a link.
(Other definitions for screech that I've seen before include "Yell" , "Outcry" , "Sudden shrill cry" , "Harsh piercing cry" , "Squeal" .)