Elliptical old poet handling love (5)
I believe the answer is:
ovoid
'elliptical' is the definition.
(synonyms)
'old poet handling love' is the wordplay.
'old poet' becomes 'ovid' (Roman poet).
'handling' means one lot of letters goes inside another.
'love' becomes 'o' (love means zero in tennis).
'ovid' enclosing 'o' is 'OVOID'.
(Other definitions for ovoid that I've seen before include "Rounded like an egg" , "Elliptical" , "shaped like distorted circle" , "like eggs!" , "egg, say" .)