Had second thoughts about grass skirts Jenny? (10)
I believe the answer is:
reassessed
'had second thoughts about' is the definition.
(to reassess is to think about again)
'grass skirts jenny?' is the wordplay.
'grass' becomes 'rice'.
'skirts' means to remove the middle letters (retain the edges).
'jenny?' becomes 'assessed' (I can't explain this - if you can you should believe this answer much more).
'rice' with its middle taken out is 're'.
're'+'assessed'='REASSESSED'
(Other definitions for reassessed that I've seen before include "Calculated again" , "Estimated afresh" , "Evaluated again" .)