Soldier getting into article lifted pen several times (9)

'soldier getting into article lifted pen several times' is the definition.
I can't judge whether this defines the answer.

'soldier getting into article lifted pen' is the wordplay.
'soldier' becomes 'GI' (GI can mean a US soldier).
'getting into' means one lot of letters goes inside another.
'article' becomes 'the' (the definite article in English).
'lifted' shows that the letters should be reversed in order (going up in down clue).
'pen' becomes 'fold' (fold is a kind of pen).
'gi' placed within 'the' is 'thgie'.
'thgie' backwards is 'eight'.
'eight'+'fold'='EIGHTFOLD'

Can you help me to learn more?