Look round at no ordinary leg (4)
I believe the answer is:
ogle
'look' is the definition.
(I know that ogle is a type of look)
'round at no ordinary leg' is the wordplay.
I cannot quite understand how this works, but
'round' could be 'o' (round can mean a round object) and 'o' is found within the answer.
an anagram of 'leg' is 'gle' which is present in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for ogle that I've seen before include "Stare at lecherously" , "Amorous glance" , "Cast flirtatious glances at" , "Look at inappropriately" , "Lech" .)