Shape incorporating one part of the body or another (7)
I believe the answer is:
forearm
'the body or another' is the definition.
I can't judge whether this definition defines the answer.
'shape incorporating one part' is the wordplay.
'shape' becomes 'form' (synonyms).
'incorporating' means one lot of letters goes inside another.
'one part' becomes 'ear' (ear is a kind of part).
'form' enclosing 'ear' is 'FOREARM'.
'of' is the link.
Can you help me to learn more?
(Other definitions for forearm that I've seen before include "Prepare to defend" , "part of body" , "Attention" , "where is the radius?" , "Upper limb between the elbow and the wrist" .)