No time for neat lines in poem (5)
I believe the answer is:
idyll
'poem' is the definition.
(thesaurus)
'no time for neat lines' is the wordplay.
'no' is a deletion indicator.
'time for' becomes 't' (I've seen this in other clues).
'neat' becomes 'tidy' ('tidy' can be similar in meaning to 'neat').
'lines' becomes 'll' (I've seen this in other clues).
'tidy' with 't' taken out is 'idy'.
'idy'+'ll'='IDYLL'
'in' is the link.
(Other definitions for idyll that I've seen before include "Short pastoral poem" , "rural image" , "Romantic poem or scene" , "Poem descriptive of pastoral life" , "Charming life in the country" .)