Grand opening left old boy with excision initially round body (5)
I believe the answer is:
globe
'round body' is the definition.
'globe' can be an answer for 'round' (thesaurus). I'm not sure about the 'body' bit.
'grand opening left old boy with excision initially' is the wordplay.
'grand' becomes 'G' (G is short for ground as in a thousand).
'opening' indicates taking the first letters.
'old boy' becomes 'OB' (abbreviation for a private school 'old boy').
'with' is a charade indicator (letters next to each other).
'initially' indicates taking the first letters.
The initial letter of 'left' is 'l'.
The initial letter of 'excision' is 'e'.
'g'+'l'+'ob'+'e'='GLOBE'
Can you help me to learn more?
(Other definitions for globe that I've seen before include "London replica theatre" , "Planet Earth" , "Orb, ball" , "Boston, MA's newspaper" , "Shakespeare's theatre" .)