Detailed notice beside posters and flyers (10)

'flyers' is the definition.
(type of bird, something which flies)

'detailed notice beside posters' is the wordplay.
'detailed' means to remove the last letter (the word must be end-less or 'de-tailed').
'notice' becomes 'spot' (I've seen this before).
'beside' becomes 'on'.
'posters' becomes 'bills' ('bill' can be a synonym of 'poster').
'spot' with its last letter taken away is 'spo'.
'spo'+'on'+'bills'='SPOONBILLS'

'and' acts as a link.