Trendy daughter is presented poorly (10)
I believe the answer is:
indisposed
'poorly' is the definition.
(synonyms)
'trendy daughter is presented' is the wordplay.
'trendy' becomes 'in' ('in' can mean fashionable).
'daughter' becomes 'dis' (I've seen this in other clues).
'is presented' becomes 'posed' (I've seen this before).
'in'+'dis'+'posed'='INDISPOSED'
(Other definitions for indisposed that I've seen before include "Slightly unwell" , "Poorly" , "Out of sorts" .)