English lamb finally entering ring -- spring back? (7)
I believe the answer is:
rebound
'spring back?' is the definition.
'english lamb finally entering ring' is the wordplay.
'english' becomes 'e' (abbreviation).
'finally' says to take the final letters.
'entering' indicates putting letters inside.
'ring' becomes 'round' ('round' can be a synonym of 'ring'**).
The final letter of 'lamb' is 'b'.
'e'+'b'='eb'
'eb' placed into 'round' is 'REBOUND'.
(Other definitions for rebound that I've seen before include "Spring back, bounce" , "Spring back -- unrobed (anag)" , "Echo back" , "Backfire" , "Deflection" .)