Animal embraced by trainspotters (5)
I believe the answer is:
otter
'animal' is the definition.
(I've seen this before)
'embraced by trainspotters' is the wordplay.
'embraced by' indicates the answer is hidden within the clue (surrounding letters embrace the answer).
'OTTER' is hidden within 'trainspotters'.
(Other definitions for otter that I've seen before include "Aquatic creature" , "Water animal with webbed fee, brown fur and flat tail" , "Aquatic carnivore" , "Freshwater carnivorous mammal with webbed and clawed feet" , "Fish-eating mammal" .)