Poetry, maybe, can be graceful just to look at (5)
I believe the answer is:
lines
'poetry maybe can be graceful just to look' is the definition.
I can't tell whether this defines the answer.
'at' is the wordplay.
I cannot quite understand how this works, but
'at' could be 'in' (synonymous in some cases - eg at school, in school) and 'in' is found within the answer.
The remaining letters 'les' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for lines that I've seen before include "Actor's text" , "Ranks" , "Long thin strokes" , "old-fashioned school punishment" , "imposition" .)