Wrote about locomotive, for example (5)
I believe the answer is:
tower
'locomotive for example' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'wrote about' is the wordplay.
'about' is an anagram indicator.
'wrote' anagrammed gives 'TOWER'.
Can you help me to learn more?
(Other definitions for tower that I've seen before include "tractor, perhaps" , "See 4 Down" , "Steeple" , "Pisa has a leaning one" , "Campanile, spire etc" .)