Younger relative recalled figure in short poem (6)
I believe the answer is:
sonnet
'short poem' is the definition.
'sonnet' can be an answer for 'poem' (type of poem). I am not certain of the 'short' bit.
'younger relative recalled figure' is the wordplay.
'younger relative' becomes 'son'.
'recalled' is a reversal indicator (to recall can mean to bring something back).
'figure' becomes 'ten' (ten is a number or figure).
'ten' back-to-front is 'net'.
'son'+'net'='SONNET'
'in' is the link.
Can you help me to learn more?
(Other definitions for sonnet that I've seen before include "The poem was sent on" , "Fourteen-lined poem" , "Form of poem" , "A form of poetry" , "Shelley's Ozymandias, for example" .)