So, toy could be a glove puppet? (5)
I believe the answer is:
sooty
'a glove puppet?' is the definition.
(British TV puppet)
'so toy could be' is the wordplay.
'could be' is an anagram indicator.
'toy' is an anagram of 'oty'.
'so'+'oty'='SOOTY'
(Other definitions for sooty that I've seen before include "Hand-puppet TV bear" , "black marks" , "TV glove puppet" , "Blackened; -- tern" , "4 [BEAR]" .)