Unable to float around about midnight (7)
I believe the answer is:
aground
'unable' is the definition.
Both the answer and definition are adjectives. Perhaps you can see a link between them that I don't see?
'float around about midnight' is the wordplay.
'float' is an anagram indicator (I've seen 'floating' mean this (float can mean fluctuate or oscillate)).
'about' means one lot of letters go next to another.
'midnight' becomes 'g' (the middle letter in 'night').
'around' put after 'g' is 'garound'.
'garound' is an anagram of 'AGROUND'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for aground that I've seen before include "on the bed" , "(Of ship) touching the bottom" , "(Of ship) not floating" , "(Of a ship) stuck on the seabed" , "Beached" .)