Mediocre handyman presents card and ring prior to trip and seals the deal (15)
I believe the answer is:
undistinguished
'mediocre' is the definition.
(thesaurus)
'handyman presents card and ring prior to trip and seals the deal' is the wordplay.
I cannot really see how this works, but
'and' could be 'n' (common abbreviation for 'and') and 'n' is present in the answer.
'ring' could be 'ting' (I have seen 'Sharp ring ' mean 'ting' so perhaps 'ring' could also mean 'ting') and 'ting' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for undistinguished that I've seen before include "Leading ordinary lives" , "like some twins?" , "Ordinary, unexceptional" , "nothing special" .)