Eliminate answer in Gaelic language (5)
I believe the answer is:
erase
'eliminate' is the definition.
(I've seen this before)
'answer in gaelic language' is the wordplay.
'answer' becomes 'a' (abbreviation eg in Q and A).
'in' indicates putting letters inside.
'gaelic language' becomes 'erse' (I've seen this before).
'a' going into 'erse' is 'ERASE'.
(Other definitions for erase that I've seen before include "Scratch" , "Put out of mind" , "Kill" , "Do away with" , "Remove recorded material" .)