Home movie initially features Irish men being somewhat shaky (6)
I believe the answer is:
infirm
'somewhat shaky' is the definition.
'infirm' can be an answer for 'shaky' (thesaurus). I am not certain of the 'somewhat' bit.
'home movie initially features irish men' is the wordplay.
'home' becomes 'in' ('he's home' can mean 'he's in').
'initially' suggests taking the first letters.
'features' indicates putting letters inside.
'irish men' becomes 'fir' ('men' in Irish Gaelic).
The initial letter of 'movie' is 'm'.
'in'+'m'='inm'
'inm' going around 'fir' is 'INFIRM'.
'being' is the link.
Can you help me to learn more?
(Other definitions for infirm that I've seen before include "Sickly" , "Frail" , "Doddery" , "Weak and feeble" , "stable? No" .)