See bird in tube, lit badly (4,3)
I believe the answer is:
blue tit
'see bird' is the definition.
The answer and definition can be both animals as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'tube lit badly' is the wordplay.
'badly' is an anagram indicator (letters in the wrong order).
'tube'+'lit'='tubelit'
'tubelit' with letters rearranged gives 'BLUE TIT'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for blue tit that I've seen before include "Small garden bird" , "little singer" , "Colourful garden bird" , "Common songbird" , "Small songbird" .)