One giving false account of a rail crash? (4)
I believe the answer is:
liar
'one giving false account' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'rail crash?' is the wordplay.
'crash?' indicates anagramming the letters (I've seen 'crashed' mean this).
'rail' anagrammed gives 'LIAR'.
'of a' acts as a link.
Can you help me to learn more?
(Other definitions for liar that I've seen before include "Dissembler" , "One whose pants are on fire?" , "Teller of untruths" , "One not telling the truth" , "Storyteller" .)