Deplorable fine carried by low EU manoeuvring (6)
I believe the answer is:
woeful
'deplorable' is the definition.
(I've seen this before)
'fine carried by low eu manoeuvring' is the wordplay.
'fine' becomes 'f' (abbreviation).
'carried by' means one lot of letters goes inside another.
'manoeuvring' indicates an anagram.
'low'+'eu'='loweu'
'loweu' with letters rearranged gives 'woeul'.
'f' put inside 'woeul' is 'WOEFUL'.
(Other definitions for woeful that I've seen before include "We foul, being sad and deplorable" , "Pitiable" , "Miserable" , "Deplorable or wretched" , "Pathetic" .)