Complained couple has no time for urgent advice (5,4)
I believe the answer is:
carpe diem
'for urgent advice' is the definition.
I can't judge whether this definition defines the answer.
'complained couple has no time' is the wordplay.
'complained' becomes 'carped' (I've seen this in another clue).
'couple' becomes 'item' (a romantic couple are 'an item').
'has no' suggests deleting specific letters.
'time' becomes 't' (abbreviation).
'item' with 't' taken away is 'iem'.
'carped'+'iem'='CARPE DIEM'
Can you help me to learn more?
(Other definitions for carpe diem that I've seen before include "make the most of today" , "Make the most of the present" , "'Seize the day'" , "from Horace" , "Make the most of the time you have" .)