The most common and most likely answer to this crossword clue is the 3 plus 2 letter word DUE TO
D
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O
More clues leading to the result DUE TO
- On account of two playing together love ensues
- Because of odour, eat cod only now and then
- Couple have nothing as a result of …
- As result of song for couple, love follows
- …because of a couple finding love
- Prompted by couple singing, orchestra opens
- ... because of love song at first
- Because of couple’s performance, a little overcrowded
- Because of a song only...
- Because of two musicians, love
Buddy explains!

The straight part
We know that "On account of" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case on account of = due to.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.